General --quiet improvements

'git reset' is missing --quiet, and 'git gc' is not using OPT__QUIET.
Let's fix that.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-reset.txt

@@ -62,6 +62,7 @@ This means that `git reset -p` is the opposite of `git add -p` (see
 linkgit:git-add[1]).
 
 -q::
+--quiet::
 	Be quiet, only report errors.
 
 <commit>::

builtin-gc.c

@@ -180,12 +180,12 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
 	char buf[80];
 
 	struct option builtin_gc_options[] = {
+		OPT__QUIET(&quiet),
 		{ OPTION_STRING, 0, "prune", &prune_expire, "date",
 			"prune unreferenced objects",
 			PARSE_OPT_OPTARG, NULL, (intptr_t)prune_expire },
 		OPT_BOOLEAN(0, "aggressive", &aggressive, "be more thorough (increased runtime)"),
 		OPT_BOOLEAN(0, "auto", &auto_gc, "enable auto-gc mode"),
-		OPT_BOOLEAN('q', "quiet", &quiet, "suppress progress reports"),
 		OPT_END()
 	};
 

builtin-reset.c

@@ -202,15 +202,14 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
 	struct commit *commit;
 	char *reflog_action, msg[1024];
 	const struct option options[] = {
+		OPT__QUIET(&quiet),
 		OPT_SET_INT(0, "mixed", &reset_type,
 						"reset HEAD and index", MIXED),
 		OPT_SET_INT(0, "soft", &reset_type, "reset only HEAD", SOFT),
 		OPT_SET_INT(0, "hard", &reset_type,
 				"reset HEAD, index and working tree", HARD),
 		OPT_SET_INT(0, "merge", &reset_type,
 				"reset HEAD, index and working tree", MERGE),
-		OPT_BOOLEAN('q', NULL, &quiet,
-				"disable showing new HEAD in hard reset and progress message"),
 		OPT_BOOLEAN('p', "patch", &patch_mode, "select hunks interactively"),
 		OPT_END()
 	};