Fix a UnicodeDecodeError in normalizing CVS keywords.

Review Request #7552 — Created July 28, 2015 and submitted — Latest diff uploaded

Information

Review Board
release-2.0.x
06c2d64...

Reviewers

The code to find and replace keywords in diffs for CVS was using a unicode
regex when it needed a byte regex. This change fixes that.

New unit test failed before the fix, succeeds after it.