document behavior of empty color name
commit512aba261a8951a470147b493c720f205638ba14
authorJeff King <peff@peff.net>
Thu, 2 Feb 2017 12:42:44 +0000 (2 13:42 +0100)
committerJunio C Hamano <gitster@pobox.com>
Thu, 2 Feb 2017 20:23:16 +0000 (2 12:23 -0800)
tree40c2f2775bfdc116f4b97bfd3842b59f7f1b2fe1
parent55cccf4bb3d7e99223b8ebb3d4480f73c456dd61
document behavior of empty color name

Commit 55cccf4bb (color_parse_mem: allow empty color spec,
2017-02-01) clearly defined the behavior of an empty color
config variable. Let's document that, and give a hint about
why it might be useful.

It's important not to say that it makes the item uncolored,
because it doesn't. It just sets no attributes, which means
that any previous attributes continue to take effect.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation/config.txt