tests: clean after SANITY tests

Some of our tests try to make sure Git behaves sensibly in a
read-only directory, by dropping 'w' permission bit before doing a
test and then restoring it after it is done.  The latter is needed
for the test framework to clean after itself without leaving a
leftover directory that cannot be removed.

Ancient parts of tests however arrange the above with

	chmod a-w . &&
	... do the test ...
	status=$?
	chmod 775 .
	(exit $status)

which obviously would not work if the test somehow dies before it
has the chance to do "chmod 775".  Rewrite them by following a more
robust pattern recently written tests use, which is

	test_when_finished "chmod 775 ." &&
	chmod a-w . &&
	... do the test ...

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/t/t5537-fetch-shallow.sh b/t/t5537-fetch-shallow.sh
index df8d2f0..943231a 100755
--- a/t/t5537-fetch-shallow.sh
+++ b/t/t5537-fetch-shallow.sh
@@ -175,8 +175,8 @@ EOF
 
 test_expect_success POSIXPERM,SANITY 'shallow fetch from a read-only repo' '
 	cp -R .git read-only.git &&
-	find read-only.git -print | xargs chmod -w &&
 	test_when_finished "find read-only.git -type d -print | xargs chmod +w" &&
+	find read-only.git -print | xargs chmod -w &&
 	git clone --no-local --depth=2 read-only.git from-read-only &&
 	git --git-dir=from-read-only/.git log --format=%s >actual &&
 	cat >expect <<EOF &&