Don't generate git patches that rename a file to multiple destinations With this patch, instead of generating N renames, we'll generate 1 rename and N-1 copies. Ideally the rename should come after the copies instead of before them, but that'd be harder to do.

%% Should show unknown
? unknown
removing b
%% Should show unknown and b removed
R b
? unknown
%% Should show a and unknown
a
unknown