commit ID in the version string, much like is done for repos tracked
with bzr. FS#11297
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29827 a1c6a512-1295-4272-9138-f99709370657
"git log .. -1" only shows one commit (the last one), so extract the last line (git-svn-id:..) with tail -n 1, instead of the first line (which is the committer's message in case of multi lines body)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21188 a1c6a512-1295-4272-9138-f99709370657