[PATCH] Use SHA1 for git-update-cache --refresh
Change git-update-cache --refresh behaviour to use sha1's rather than comparing byte by byte. [JC demangled whitespace from the posted patch himself because he liked it so much. Also adjusted to the index_fd() interface slightly done differently from the original one.] Signed-off-by: NBryan Larsen <bryan.larsen@gmail.com> Signed-off-by: NJunio C Hamano <junkio@cox.net> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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