add description parameter to OPT__VERBOSE

Allows better help text to be defined than "be verbose".  Also make use
of the macro in places that already had a different description.  No
object code changes intended.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/count-objects.c b/builtin/count-objects.c
index 2bdd8eb..c37cb98 100644
--- a/builtin/count-objects.c
+++ b/builtin/count-objects.c
@@ -79,7 +79,7 @@
 	unsigned long loose = 0, packed = 0, packed_loose = 0, garbage = 0;
 	off_t loose_size = 0;
 	struct option opts[] = {
-		OPT__VERBOSE(&verbose),
+		OPT__VERBOSE(&verbose, "be verbose"),
 		OPT_END(),
 	};