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由 Junio C Hamano 提交于
I had to scratch my head for quite some time figuring out why we cannot optimize out write_tree() we do when --no-commit option is given, whose purpose seem to be only to check if the index is unmerged, with a simple loop over the active_cache[]. So add a comment to describe why the write_tree() is there, and resurrect the last scripted version as a reference material in contrib/example directory with others. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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