Tyler Nielsen
6f5314e993
Properly handle empty commits with no changes.
Clear files, inserted and deleted after storing them for the preceding commit.
git-svn, for example, can have empty commits (when a directory is created),
causing the statistics to get skewed.
[hoxu@users.sf.net: rewrote commit message based on Tyler's mail]
Signed-off-by: Heikki Hokkanen <hoxu@users.sf.net>