Commit 5fdc41e76591aebdbae3b49440bc2c8b2430718c

Russell Belfer 2012-08-22T13:57:57

Minor bug fixes in diff code In looking at PR #878, I found a few small bugs in the diff code, mostly related to work that can be avoided when processing tree- to-tree diffs that was always being carried out. This commit has some small fixes in it.