tree 114f51785e5003bb54b424f0bf5eabd574b53cc5
parent 0ce2e396ee9fb0fa07e8381b338e49859dbf03db
author Thomas Rast <trast@inf.ethz.ch> 1371814680 +0200
committer Junio C Hamano <gitster@pobox.com> 1371828967 -0700

apply: carefully strdup a possibly-NULL name

2901bbe (apply: free patch->{def,old,new}_name fields, 2012-03-21)
cleaned up the memory management of filenames in the patches, but
forgot that find_name_traditional() can return NULL as a way of saying
"I couldn't find a name".

That NULL unfortunately gets passed into xstrdup() next, resulting in
a segfault.  Use null_strdup() so as to safely propagate the null,
which will let us emit the correct error message.

Reported-by: DevHC on #git
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>