[PATCH] diff: added '-q' option, short option for '--quiet'

[Alexander Kuleshov <kuleshovmail@gmail.com>]

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
---
 Documentation/diff-options.txt | 1 +
 diff.c                         | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 2b15050..9160c90 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -491,6 +491,7 @@ ifndef::git-log[]
 	That is, it exits with 1 if there were differences and
 	0 means no differences.
 
+-q
 --quiet::
 	Disable all output of the program. Implies `--exit-code`.
 endif::git-log[]
diff --git a/diff.c b/diff.c
index 6ad8970..d778df7 100644
--- a/diff.c
+++ b/diff.c
@@ -3798,7 +3798,7 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
 	}
 	else if (!strcmp(arg, "--exit-code"))
 		DIFF_OPT_SET(options, EXIT_WITH_STATUS);
-	else if (!strcmp(arg, "--quiet"))
+	else if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q"))
 		DIFF_OPT_SET(options, QUICK);
 	else if (!strcmp(arg, "--ext-diff"))
 		DIFF_OPT_SET(options, ALLOW_EXTERNAL);
-- 
2.3.0.rc0.256.gb0e92c0