connection: ignore errors when parsing ssh_config

The new ssh_Config feature doesn't work on my system because the lib
fails to parse configs using Match[1]. However Fedora and RHEL based
distros seem to ship /etc/ssh/ssh_config.d/50-redhat.conf which contains
a Match line thus it always fails to parse and never uses the proper
values from my home dir config.

[1] kevinburke/ssh_config#6

Signed-off-by: Paul Holzinger <[email protected]>
(cherry picked from commit 8a5ec2c)

pkg/bindings/connection.go

@@ -170,6 +170,7 @@ func sshClient(_url *url.URL, uri string, identity string, machine bool) (Connec
 	// ssh_config
 	alias := _url.Hostname()
 	cfg := ssh_config.DefaultUserSettings
+	cfg.IgnoreErrors = true
 	found := false
 	if val := cfg.Get(alias, "User"); val != "" {
 		userinfo = url.User(val)