Author an empty commit indicating that the repo was exported

[GoogleCodeExporter]

It would be nice if there were a record that the repository was exported from 
Google code. Something like this:

    git commit --allow-empty --author="Support Tools <[email protected]>" \
        -m "Export from Google Code" \
        -m "Project exported from Google Code on 2015-04-02" \
        -m "Originally available at https://code.google.com/..."

Original issue reported on code.google.com by [email protected] on 2 Apr 2015 at 9:06

[GoogleCodeExporter]

Original comment by [email protected] on 14 Apr 2015 at 4:25

• Added labels: Priority-Low
• Removed labels: Priority-Medium

[GoogleCodeExporter]

Original comment by [email protected] on 26 Apr 2015 at 1:15

• Changed state: New
• Added labels: Component-ExporterTool