Compare current commit with 1.parent, and for each affected file display
current filemode, old filemode if changed, current filename and source
filename if it was a copy/rename.
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Replace the call to lookup_commit() with a call to lookup_commit_reference,
since it handles reading and parsing of the commit object internally.
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
