test-convert-svn-move: sort svn checkout output It turns out that there's no guarantee in which order svn will traverse a directory while performing a checkout. Sorting the output will make these tests stable.

fileset: do not crash by unary negate operation Backported from minifileset.py.

fileset: make it robust for bad function calls Before, it could crash or show cryptic message.

log: build follow-log filematcher at once We no longer need to replay copy tracing to build filematcher as we can walk (rev, fctxs) pairs.