On the log-addressing branch:
Extend our FSFS addressing mode upgrade test to verify that pack will
handle old mode as well as new mode shards correctly in a single run.

* subversion/tests/libsvn_fs_fs/fs-fs-pack-test.c
  (upgrade_txn_to_log_addressing): fill up the latest shard and pack both
                                   shards, the one using phys. addressing
                                   and the one using log. addressing

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/log-addressing@1535730 13f79535-47bb-0310-9956-ffa450edef68