Junio C Hamano 13092a916d cocci: refactor common patterns to use xstrdup_or_null() ...

d64ea0f83b ("git-compat-util: add xstrdup_or_null helper",
2015-01-12) added a handy wrapper that allows us to get a duplicate
of a string or NULL if the original is NULL, but a handful of
codepath predate its introduction or just weren't aware of it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

2016-10-12 11:22:10 -07:00

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