Try to unify punctuation of messages.

cmd/zdb/zdb.c

@@ -8758,7 +8758,7 @@ zdb_decompress_block(abd_t *pabd, void *buf, void *lbuf, uint64_t lsize,
 	umem_free(lbuf2, SPA_MAXBLOCKSIZE);
 
 	if (*cfuncp == ZIO_COMPRESS_ZLE) {
-		printf("\nZLE decompression was selected. If you "
+		printf("\nZLE decompression was selected.  If you "
 		    "suspect the results are wrong,\ntry avoiding ZLE "
 		    "by setting and exporting ZDB_NO_ZLE=\"true\"\n");
 	}

cmd/zfs/zfs_main.c

@@ -1003,7 +1003,7 @@
 			(void) fprintf(stderr, gettext("Warning: "
 			    "volblocksize (%llu) is much less than the "
 			    "minimum allocation\nunit (%llu), which wastes "
-			    "at least %llu%% of space. To reduce wasted "
+			    "at least %llu%% of space.  To reduce wasted "
 			    "space,\nuse a larger volblocksize (%llu is "
 			    "recommended), fewer dRAID data disks\n"
 			    "per group, or smaller sector size (ashift).\n"),
@@ -4988,7 +4988,7 @@
 			 * warning, and assume snapshot.
 			 */
 			(void) fprintf(stderr, "Warning: incremental source "
-			    "didn't specify type, assuming snapshot. Use '@' "
+			    "didn't specify type, assuming snapshot.  Use '@' "
 			    "or '#' prefix to avoid ambiguity.\n");
 			(void) snprintf(frombuf, sizeof (frombuf), "@%s",
 			    fromname);
@@ -5880,7 +5880,7 @@
 		break;
 	case ZFS_DELEG_NOTE_DIFF:
 		str = gettext("Allows lookup of paths within a dataset;"
-		    "\n\t\t\t\tgiven an object number. Ordinary users need this"
+		    "\n\t\t\t\tgiven an object number.  Ordinary users need this"
 		    "\n\t\t\t\tin order to use zfs diff");
 		break;
 	case ZFS_DELEG_NOTE_HOLD:
@@ -8540,7 +8540,7 @@
 				errstring = "Timed out.";
 				break;
 			case EPERM:
-				errstring = "Permission denied. Channel "
+				errstring = "Permission denied.  Channel "
 				    "programs must be run as root.";
 				break;
 			default:

cmd/zpool/os/freebsd/zpool_vdev_os.c

@@ -114,7 +114,7 @@ after_zpool_upgrade(zpool_handle_t *zhp)
 	    strcmp(bootfs, "-") != 0) {
 		(void) printf(gettext("Pool '%s' has the bootfs "
 		    "property set, you might need to update\nthe boot "
-		    "code. See gptzfsboot(8) and loader.efi(8) for "
+		    "code.  See gptzfsboot(8) and loader.efi(8) for "
 		    "details.\n"), zpool_get_name(zhp));
 	}
 }

cmd/zpool/zpool_main.c

@@ -1901,7 +1901,7 @@
 
 		if (force) {
 			(void) fprintf(stderr, gettext(
-			    ". Offline the disk first to clear its label."));
+			    ".  Offline the disk first to clear its label."));
 		}
 		printf("\n");
 		ret = 1;
@@ -3503,7 +3503,7 @@
 
 	case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
 		printf_color(ANSI_YELLOW, gettext("The pool can only be "
-		    "accessed in read-only mode on this system. It\n"
+		    "accessed in read-only mode on this system.  It\n"
 		    "\t%scannot be accessed in read-write mode because it uses "
 		    "the following\n"
 		    "\t%sfeature(s) not supported on this system:\n"),
@@ -3617,7 +3617,7 @@
 				(void) printf(gettext("Existing encrypted "
 				    "datasets contain an on-disk "
 				    "incompatibility, which\n"
-				    "\t%sneeds to be corrected. Backup these "
+				    "\t%sneeds to be corrected.  Backup these "
 				    "datasets to new encrypted datasets\n"
 				    "\t%sand destroy the old ones.\n"),
 				    indent, indent);
@@ -3627,16 +3627,16 @@
 				(void) printf(gettext("Existing encrypted "
 				    "snapshots and bookmarks contain an "
 				    "on-disk\n"
-				    "\t%sincompatibility. This may cause "
+				    "\t%sincompatibility.  This may cause "
 				    "on-disk corruption if they are used\n"
-				    "\t%swith 'zfs recv'. To correct the "
+				    "\t%swith 'zfs recv'.  To correct the "
 				    "issue, enable the bookmark_v2 feature.\n"
 				    "\t%sNo additional action is needed if "
 				    "there are no encrypted snapshots or\n"
-				    "\t%sbookmarks. If preserving the "
+				    "\t%sbookmarks.  If preserving the "
 				    "encrypted snapshots and bookmarks is\n"
 				    "\t%srequired, use a non-raw send to "
-				    "backup and restore them. Alternately,\n"
+				    "backup and restore them.  Alternately,\n"
 				    "\t%sthey may be removed to resolve the "
 				    "incompatibility.\n"), indent, indent,
 				    indent, indent, indent, indent);
@@ -3672,7 +3672,7 @@
 			break;
 		case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
 			(void) printf(gettext("The pool cannot be imported in "
-			    "read-write mode. Import the pool with\n"
+			    "read-write mode.  Import the pool with\n"
 			    "\t%s'-o readonly=on', access the pool on a system "
 			    "that supports the\n"
 			    "\t%srequired feature(s), or recreate the pool "
@@ -3848,7 +3848,7 @@
 		} else if (mmp_state == MMP_STATE_NO_HOSTID) {
 			(void) fprintf(stderr, gettext("Cannot import '%s': "
 			    "pool has the multihost property on and the\n"
-			    "system's hostid is not set. Set a unique hostid "
+			    "system's hostid is not set.  Set a unique hostid "
 			    "with the zgenhostid(8) command.\n"), name);
 		} else {
 			const char *hostname = "<unknown>";
@@ -4182,7 +4182,7 @@
 		/* As a special case, check for use of '/' in the name */
 		if (strchr(pool, '/') != NULL)
 			(void) fprintf(stderr, gettext("'zpool checkpoint' "
-			    "doesn't work on datasets. To save the state "
+			    "doesn't work on datasets.  To save the state "
 			    "of a dataset from a specific point in time "
 			    "please use 'zfs snapshot'\n"));
 		return (1);
@@ -10464,15 +10464,15 @@
 		    "The pool can still be used, but some features are "
 		    "unavailable.\n"));
 		snprintf(action, AC_SIZE, gettext("Enable all features using "
-		    "'zpool upgrade'. Once this is done,\n\tthe pool may no "
+		    "'zpool upgrade'.  Once this is done,\n\tthe pool may no "
 		    "longer be accessible by software that does not support\n\t"
-		    "the features. See zpool-features(7) for details.\n"));
+		    "the features.  See zpool-features(7) for details.\n"));
 		break;
 
 	case ZPOOL_STATUS_COMPATIBILITY_ERR:
 		snprintf(status, ST_SIZE, gettext("This pool has a "
 		    "compatibility list specified, but it could not be\n\t"
-		    "read/parsed at this time. The pool can still be used, "
+		    "read/parsed at this time.  The pool can still be used, "
 		    "but this\n\tshould be investigated.\n"));
 		snprintf(action, AC_SIZE, gettext("Check the value of the "
 		    "'compatibility' property against the\n\t"
@@ -10503,13 +10503,13 @@
 
 	case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
 		snprintf(status, ST_SIZE, gettext("The pool can only be "
-		    "accessed in read-only mode on this system. It\n\tcannot be"
+		    "accessed in read-only mode on this system.  It\n\tcannot be"
 		    " accessed in read-write mode because it uses the "
 		    "following\n\tfeature(s) not supported on this system:\n"));
 		zpool_collect_unsup_feat(zpool_get_config(zhp, NULL), status,
 		    1024);
 		snprintf(action, AC_SIZE, gettext("The pool cannot be accessed "
-		    "in read-write mode. Import the pool with\n"
+		    "in read-write mode.  Import the pool with\n"
 		    "\t\"-o readonly=on\", access the pool from a system that "
 		    "supports the\n\trequired feature(s), or restore the "
 		    "pool from backup.\n"));
@@ -10609,11 +10609,11 @@
 		case ZPOOL_ERRATA_ZOL_8308_ENCRYPTION:
 			(void) strlcat(status, gettext("\tExisting encrypted "
 			    "snapshots and bookmarks contain an on-disk\n\t"
-			    "incompatibility. This may cause on-disk "
+			    "incompatibility.  This may cause on-disk "
 			    "corruption if they are used\n\twith "
 			    "'zfs recv'.\n"), ST_SIZE);
 			snprintf(action, AC_SIZE, gettext("To correct the"
-			    "issue, enable the bookmark_v2 feature. No "
+			    "issue, enable the bookmark_v2 feature.  No "
 			    "additional\n\taction is needed if there are no "
 			    "encrypted snapshots or bookmarks.\n\tIf preserving"
 			    "the encrypted snapshots and bookmarks is required,"
@@ -11442,7 +11442,7 @@
 					    "Once a\nfeature is enabled the "
 					    "pool may become incompatible with "
 					    "software\nthat does not support "
-					    "the feature. See "
+					    "the feature.  See "
 					    "zpool-features(7) for "
 					    "details.\n\n"
 					    "Note that the pool "

etc/systemd/system-generators/zfs-mount-generator.c

@@ -592,7 +592,7 @@ line_worker(char *line, const char *cachefile)
 			/* Don't log for canmount=noauto */
 			if (strcmp(p_canmount, "on") == 0)
 				fprintf(stderr, PROGNAME "[%d]: %s: "
-				    "%s already exists. Skipping.\n",
+				    "%s already exists.  Skipping.\n",
 				    getpid(), dataset, mountfile);
 		}
 

lib/libzfs/libzfs_mount.c

@@ -518,7 +518,7 @@ zfs_mount_at(zfs_handle_t *zhp, const char *options, int flags,
 			VERIFY(zfs_spa_version(zhp, &spa_version) == 0);
 			zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
 			    "Can't mount a version %llu "
-			    "file system on a version %d pool. Pool must be"
+			    "file system on a version %d pool.  Pool must be"
 			    " upgraded to mount this file system."),
 			    (u_longlong_t)zfs_prop_get_int(zhp,
 			    ZFS_PROP_VERSION), spa_version);

lib/libzfs/libzfs_sendrecv.c

@@ -5245,15 +5245,15 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
 			break;
 		case ZFS_ERR_FROM_IVSET_GUID_MISSING:
 			zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
-			    "IV set guid missing. See errata %u at "
+			    "IV set guid missing.  See errata %u at "
 			    "https://openzfs.github.io/openzfs-docs/msg/"
 			    "ZFS-8000-ER."),
 			    ZPOOL_ERRATA_ZOL_8308_ENCRYPTION);
 			(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
 			break;
 		case ZFS_ERR_FROM_IVSET_GUID_MISMATCH:
 			zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
-			    "IV set guid mismatch. See the 'zfs receive' "
+			    "IV set guid mismatch.  See the 'zfs receive' "
 			    "man page section\n discussing the limitations "
 			    "of raw encrypted send streams."));
 			(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
@@ -5281,7 +5281,7 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
 		case E2BIG:
 			zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
 			    "zfs receive required kernel memory allocation "
-			    "larger than the system can support. Please file "
+			    "larger than the system can support.  Please file "
 			    "an issue at the OpenZFS issue tracker:\n"
 			    "https://github.com/openzfs/zfs/issues/new"));
 			(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);

lib/libzfs/libzfs_util.c

@@ -493,7 +493,7 @@ zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
 	case ZFS_ERR_UNKNOWN_SEND_STREAM_FEATURE:
 	case ZFS_ERR_IOC_CMD_UNAVAIL:
 		zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "the loaded zfs "
-		    "module does not support this operation. A reboot may "
+		    "module does not support this operation.  A reboot may "
 		    "be required to enable this operation."));
 		zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap);
 		break;
@@ -755,7 +755,7 @@ zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
 		break;
 	case ZFS_ERR_IOC_CMD_UNAVAIL:
 		zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "the loaded zfs "
-		    "module does not support this operation. A reboot may "
+		    "module does not support this operation.  A reboot may "
 		    "be required to enable this operation."));
 		zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap);
 		break;

module/os/freebsd/zfs/zfs_vfsops.c

@@ -809,7 +809,7 @@ zfsvfs_init(zfsvfs_t *zfsvfs, objset_t *os)
 	if (zfsvfs->z_version >
 	    zfs_zpl_version_map(spa_version(dmu_objset_spa(os)))) {
 		(void) printf("Can't mount a version %lld file system "
-		    "on a version %lld pool\n. Pool must be upgraded to mount "
+		    "on a version %lld pool\n.  Pool must be upgraded to mount "
 		    "this file system.", (u_longlong_t)zfsvfs->z_version,
 		    (u_longlong_t)spa_version(dmu_objset_spa(os)));
 		return (SET_ERROR(ENOTSUP));

module/os/linux/spl/spl-generic.c

@@ -794,7 +794,7 @@ spl_random_init(void)
 			(void) memcpy(s, "improbable seed", 16);
 		}
 		printk("SPL: get_random_bytes() returned 0 "
-		    "when generating random seed. Setting initial seed to "
+		    "when generating random seed.  Setting initial seed to "
 		    "0x%016llx%016llx%016llx%016llx.\n", cpu_to_be64(s[0]),
 		    cpu_to_be64(s[1]), cpu_to_be64(s[2]), cpu_to_be64(s[3]));
 	}

module/os/linux/zfs/zfs_vfsops.c

@@ -646,7 +646,7 @@ zfsvfs_init(zfsvfs_t *zfsvfs, objset_t *os)
 	if (zfsvfs->z_version >
 	    zfs_zpl_version_map(spa_version(dmu_objset_spa(os)))) {
 		(void) printk("Can't mount a version %lld file system "
-		    "on a version %lld pool\n. Pool must be upgraded to mount "
+		    "on a version %lld pool\n.  Pool must be upgraded to mount "
 		    "this file system.\n", (u_longlong_t)zfsvfs->z_version,
 		    (u_longlong_t)spa_version(dmu_objset_spa(os)));
 		return (SET_ERROR(ENOTSUP));

module/os/linux/zfs/zvol_os.c

@@ -1907,7 +1907,7 @@ module_param(zvol_major, uint, 0444);
 MODULE_PARM_DESC(zvol_major, "Major number for zvol device");
 
 module_param(zvol_threads, uint, 0444);
-MODULE_PARM_DESC(zvol_threads, "Number of threads to handle I/O requests. Set"
+MODULE_PARM_DESC(zvol_threads, "Number of threads to handle I/O requests.  Set"
     "to 0 to use all active CPUs");
 
 module_param(zvol_request_sync, uint, 0644);

module/zcommon/zfs_namecheck.c

@@ -464,4 +464,4 @@ EXPORT_SYMBOL(get_dataset_depth);
 EXPORT_SYMBOL(zfs_max_dataset_nesting);
 
 ZFS_MODULE_PARAM(zfs, zfs_, max_dataset_nesting, INT, ZMOD_RW,
-	"Limit to the amount of nesting a path can have. Defaults to 50.");
+	"Limit to the amount of nesting a path can have.  Defaults to 50.");

module/zfs/btree.c

@@ -2210,6 +2210,6 @@ zfs_btree_verify(zfs_btree_t *tree)
 
 /* BEGIN CSTYLED */
 ZFS_MODULE_PARAM(zfs, zfs_, btree_verify_intensity, UINT, ZMOD_RW,
-	"Enable btree verification. Levels above 4 require ZFS be built "
+	"Enable btree verification.  Levels above 4 require ZFS be built "
 	"with debugging");
 /* END CSTYLED */

module/zfs/spa.c

@@ -2853,7 +2853,7 @@ spa_load_verify(spa_t *spa)
 	if (spa_load_verify_metadata) {
 		if (spa->spa_extreme_rewind) {
 			spa_load_note(spa, "performing a complete scan of the "
-			    "pool since extreme rewind is on. This may take "
+			    "pool since extreme rewind is on.  This may take "
 			    "a very long time.\n  (spa_load_verify_data=%u, "
 			    "spa_load_verify_metadata=%u)",
 			    spa_load_verify_data, spa_load_verify_metadata);
@@ -4469,7 +4469,7 @@ spa_ld_trusted_config(spa_t *spa, spa_import_type_t type,
 			vdev_dbgmsg_print_tree(rvd, 2);
 			if (reloading) {
 				spa_load_failed(spa, "config was already "
-				    "provided from MOS. Aborting.");
+				    "provided from MOS.  Aborting.");
 				return (spa_vdev_err(rvd,
 				    VDEV_AUX_CORRUPT_DATA, EIO));
 			}

module/zfs/vdev.c

@@ -3833,7 +3833,7 @@
 		if (vd->vdev_ashift == 0 || vd->vdev_asize == 0) {
 			vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN,
 			    VDEV_AUX_CORRUPT_DATA);
-			vdev_dbgmsg(vd, "vdev_load: invalid size. ashift=%llu, "
+			vdev_dbgmsg(vd, "vdev_load: invalid size.  ashift=%llu, "
 			    "asize=%llu", (u_longlong_t)vd->vdev_ashift,
 			    (u_longlong_t)vd->vdev_asize);
 			return (SET_ERROR(ENXIO));

module/zfs/vdev_indirect.c

@@ -1917,7 +1917,7 @@ ZFS_MODULE_PARAM(zfs_condense, zfs_condense_, max_obsolete_bytes, U64,
 ZFS_MODULE_PARAM(zfs_condense, zfs_condense_, indirect_commit_entry_delay_ms,
 	UINT, ZMOD_RW,
 	"Used by tests to ensure certain actions happen in the middle of a "
-	"condense. A maximum value of 1 should be sufficient.");
+	"condense.  A maximum value of 1 should be sufficient.");
 
 ZFS_MODULE_PARAM(zfs_reconstruct, zfs_reconstruct_, indirect_combinations_max,
 	UINT, ZMOD_RW,

module/zfs/zio.c

@@ -2636,7 +2636,7 @@ zio_resume(spa_t *spa)
 	mutex_enter(&spa->spa_suspend_lock);
 	if (spa->spa_suspended != ZIO_SUSPEND_NONE)
 		cmn_err(CE_WARN, "Pool '%s' was suspended and is being "
-		    "resumed. Failed I/O will be retried.",
+		    "resumed.  Failed I/O will be retried.",
 		    spa_name(spa));
 	spa->spa_suspended = ZIO_SUSPEND_NONE;
 	cv_broadcast(&spa->spa_suspend_cv);