git-stash: fix flag parsing

Currently git-stash uses `git rev-parse --no-revs -- "$@"` to set its
FLAGS variable.  This is the same as `FLAGS="-- $@"`.  It should use
`git rev-parse --no-revs --flags "$@"`, but that eats any "-q" or
"--quiet" argument.  So move the check for quiet before rev-parse.

Signed-off-by: Brian Gernhardt <brian@gernhardtsoftware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-stash.sh

@@ -264,18 +264,25 @@ parse_flags_and_rev()
 	b_tree=
 	i_tree=
 
+	# Work around rev-parse --flags eating -q
+	for opt
+	do
+		case "$opt" in
+		-q|--quiet)
+			GIT_QUIET=t
+			;;
+		esac
+	done
+
 	REV=$(git rev-parse --no-flags --symbolic "$@" 2>/dev/null)
-	FLAGS=$(git rev-parse --no-revs -- "$@" 2>/dev/null)
+	FLAGS=$(git rev-parse --no-revs --flags "$@" 2>/dev/null)
 
 	set -- $FLAGS
 
 	FLAGS=
 	while test $# -ne 0
 	do
 		case "$1" in
-			-q|--quiet)
-				GIT_QUIET=-t
-			;;
 			--index)
 				INDEX_OPTION=--index
 			;;

t/t3903-stash.sh

@@ -406,7 +406,7 @@ test_expect_success 'stash branch - stashes on stack, stash-like argument' '
 	test $(git ls-files --modified | wc -l) -eq 1
 '
 
-test_expect_failure 'stash show - stashes on stack, stash-like argument' '
+test_expect_success 'stash show - stashes on stack, stash-like argument' '
 	git stash clear &&
 	test_when_finished "git reset --hard HEAD" &&
 	git reset --hard &&
@@ -424,7 +424,7 @@ test_expect_failure 'stash show - stashes on stack, stash-like argument' '
 	test_cmp expected actual
 '
 
-test_expect_failure 'stash show -p - stashes on stack, stash-like argument' '
+test_expect_success 'stash show -p - stashes on stack, stash-like argument' '
 	git stash clear &&
 	test_when_finished "git reset --hard HEAD" &&
 	git reset --hard &&
@@ -447,7 +447,7 @@ test_expect_failure 'stash show -p - stashes on stack, stash-like argument' '
 	test_cmp expected actual
 '
 
-test_expect_failure 'stash show - no stashes on stack, stash-like argument' '
+test_expect_success 'stash show - no stashes on stack, stash-like argument' '
 	git stash clear &&
 	test_when_finished "git reset --hard HEAD" &&
 	git reset --hard &&
@@ -462,7 +462,7 @@ test_expect_failure 'stash show - no stashes on stack, stash-like argument' '
 	test_cmp expected actual
 '
 
-test_expect_failure 'stash show -p - no stashes on stack, stash-like argument' '
+test_expect_success 'stash show -p - no stashes on stack, stash-like argument' '
 	git stash clear &&
 	test_when_finished "git reset --hard HEAD" &&
 	git reset --hard &&