Renato Golin c87f190902 Improve check on git-svnrevert, better error message ... When the commit is not in the tree at all, find-rev returns 0 and prints an empty string. We need to catch that problem too, when trying to revert. Adding a list of possible problems, so that you can easily and quickly correct without having to edit the script again. llvm-svn: 237516		2015-05-16 10:23:48 +00:00
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git-svnrevert
git-svnup