diff.c: guard config parser from value=NULL
authorJunio C Hamano <gitster@pobox.com>
Mon, 11 Feb 2008 18:53:56 +0000 (10:53 -0800)
committerJunio C Hamano <gitster@pobox.com>
Mon, 11 Feb 2008 21:11:36 +0000 (13:11 -0800)
commit64f30e948be5fb2cd2f65e91c0eab5ab4719c636
tree2aa88e4de5a39ab6d274a5eb2baad2a96d740fd2
parenta7269e5cb703083efb084ba19bc703ebc915aa5c
diff.c: guard config parser from value=NULL

diff.external, diff.*.command, diff.color.*, color.diff.* and
diff.*.funcname configuration variables expect a string value.

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