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由 Junio C Hamano 提交于
With this patch, the non-core'ish part of show-diff command that invokes an external "diff" comand to obtain patches is split into a separate file. The next patch will introduce a new command, diff-tree-helper, which uses this common diff interface to format diff-tree and diff-cache output into a patch form. Signed-off-by: NJunio C Hamano <junkio@cox.net> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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