branch: -v does not automatically imply --list

"branch -v" without other options or parameters still works in the list
mode, but that is not because there is "-v" but because there is no
parameter nor option.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t3203-branch-output.sh

@@ -84,12 +84,16 @@ cat >expect <<'EOF'
 two
 one
 EOF
-test_expect_success 'git branch -v pattern shows branch summaries' '
-	git branch -v branch* >tmp &&
+test_expect_success 'git branch --list -v pattern shows branch summaries' '
+	git branch --list -v branch* >tmp &&
 	awk "{print \$NF}" <tmp >actual &&
 	test_cmp expect actual
 '
 
+test_expect_success 'git branch -v pattern does not show branch summaries' '
+	test_must_fail git branch -v branch*
+'
+
 cat >expect <<'EOF'
 * (no branch)
   branch-one