[PATCH v2] t/pack-refs-tests: drop '-f' from test_path_is_missing

[jayesh0104 <jayeshdaga99@gmail.com>]

test_path_is_missing expects exactly one argument: the path to
check for absence. Passing '-f' is incorrect and results in
"bug in the test script: 1 param" during test execution.

The '-f' flag appears to have been carried over from the
equivalent 'test -f' usage, but test_path_is_missing does not
accept such flags.

Remove the extraneous '-f' to use the helper correctly and
restore proper test behavior.

v2:
- Fix unintended removal of shebang and test framework lines
- Keep file mode unchanged

Signed-off-by: Jayesh Daga <jayeshdaga99@gmail.com>
---
 t/pack-refs-tests.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/t/pack-refs-tests.sh b/t/pack-refs-tests.sh
index 2fdaccb6c7..4a85d96c6b 100644
--- a/t/pack-refs-tests.sh
+++ b/t/pack-refs-tests.sh
@@ -61,7 +61,7 @@ test_expect_success 'see if a branch still exists after git ${pack_refs} --prune
 test_expect_success 'see if git ${pack_refs} --prune remove ref files' '
 	git branch f &&
 	git ${pack_refs} --all --prune &&
-	! test -f .git/refs/heads/f
+	test_path_is_missing .git/refs/heads/f
 '
 
 test_expect_success 'see if git ${pack_refs} --prune removes empty dirs' '
-- 
2.43.0