diff: move diff.c to diff-lib.c to make room.
Now I am not doing any real "git-diff in C" yet, but this would help before doing so. Signed-off-by: Junio C Hamano <junkio@cox.net>
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Now I am not doing any real "git-diff in C" yet, but this would help before doing so. Signed-off-by: Junio C Hamano <junkio@cox.net>