On remove-log-addressing branch: Update fs-test expection.

* subversion/tests/libsvn_fs/fs-test.c
  (upgrade_while_committing): Excpect that begin_txn and commit doesn't fail
   after upgrade to fsfs7.


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/remove-log-addressing@1636546 13f79535-47bb-0310-9956-ffa450edef68