When the script was created there were only stable/* branches, but now
there are unmaintained/* branches as well, where the validator fails
when looking for hashes only on stable/* branches even if the given
hash is already on unmtaintained/* branch. This patch matches now both
stable/* and unmaintained/* branches.
Change-Id: I08fcc63ab0fbe5af1be70d5fde5af98bf006101c
(cherry picked from commit e2697de8e4)
(cherry picked from commit 602e68364c)
56e73cc7ba