This code breaks compatibility with the svn_revision_from_git_commit method. Once it is removed, it is up to the caller of _run_git_svn_find_rev to ensure that its revision is prepended with an 'r', when calling _run_git_svn_find_rev with an SVN revision.
Created attachment 241132 [details] Patch
Committed r175717: <http://trac.webkit.org/changeset/175717>