Fix SVN unit tests with SVN 1.9
Review Request #8933 - Created May 8, 2017 and submitted
SVN 1.9 once again made some changes to the format of diffs. This change adds
new hashes for our equality tests. At some point soon we'll probably want to
rework this to be a little less sensitive to the underlying format changes, but
for now we can keep this jalopy running a little longer.
Ran unit tests.