git-svn: only look at the root path for svn:mergeinfo
git-svn: only look at the root path for svn:mergeinfo

Subversion can put mergeinfo on any sub-directory to track cherry-picks.
Since cherry-picks are not represented explicitly in git, git-svn should
just ignore it.

Signed-off-by: Jakob Stoklund Olesen <9e01571d0adae2c18b4ca0578f54335c0bc01b66@2pi.dk>
Signed-off-by: Eric Wong <8c2951295f8292b0c03727bc4652981172298eae@yhbt.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git