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Use the macro FREE_AND_NULL to release allocated objects and clear their pointers. This is shorter and documents the intent better by combining the two related operations into one. Patch generated with Coccinelle and contrib/coccinelle/free.cocci. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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