From: Jeff King <peff@peff.net>
Date: Tue, 29 Jul 2014 17:56:48 +0000 (-0400)
Subject: pretty: make empty userformats truly empty
X-Git-Tag: v2.1.1~12^2
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/b9c7d6e4330e3dcdb3b3e5f013e5667e47555c95?hp=b9c7d6e4330e3dcdb3b3e5f013e5667e47555c95

pretty: make empty userformats truly empty

If the user provides an empty format with "--format=", we
end up putting in extra whitespace that the user cannot
prevent. This comes from two places:

1. If the format is missing a terminating newline, we add
one automatically. This makes sense for --format=%h, but
not for a truly empty format.

2. We add an extra newline between the pretty-printed
format and a diff or diffstat. If the format is empty,
there's no point in doing so if there's nothing to
separate.

With this patch, one can get a diff with no other cruft out
of "diff-tree --format= $commit".

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