Mark t1301 permission test to depend on POSIXPERM

This prepares the topic for inclusion to master.

diff --combined t/t1301-shared-repo.sh
index 3fddc9ee781ba9fb5d189bbc5ec0b900b159723a,750fbb32e87e0eb8f7a95928f9b407036822c7ad..de42d21c922045415abedf3c81163682d0754eb5
--- 1/t/t1301-shared-repo.sh
--- 2/t/t1301-shared-repo.sh
+++ b/t/t1301-shared-repo.sh
@@@ -26,7 -26,7 +26,7 @@@ modebits () 
  
  for u in 002 022
  do
-       test_expect_success "shared=1 does not clear bits preset by umask $u" '
+       test_expect_success POSIXPERM "shared=1 does not clear bits preset by umask $u" '
                mkdir sub && (
                        cd sub &&
                        umask $u &&
@@@ -54,7 -54,7 +54,7 @@@ test_expect_success 'shared=all' 
        test 2 = $(git config core.sharedrepository)
  '
  
- test_expect_success 'update-server-info honors core.sharedRepository' '
+ test_expect_success POSIXPERM 'update-server-info honors core.sharedRepository' '
        : > a1 &&
        git add a1 &&
        test_tick &&
@@@ -85,7 -85,7 +85,7 @@@ d
        git config core.sharedrepository "$u" &&
        umask 0277 &&
  
-       test_expect_success "shared = $u ($y) ro" '
+       test_expect_success POSIXPERM "shared = $u ($y) ro" '
  
                rm -f .git/info/refs &&
                git update-server-info &&
@@@ -97,7 -97,7 +97,7 @@@
        '
  
        umask 077 &&
-       test_expect_success "shared = $u ($x) rw" '
+       test_expect_success POSIXPERM "shared = $u ($x) rw" '
  
                rm -f .git/info/refs &&
                git update-server-info &&
@@@ -111,7 -111,7 +111,7 @@@
  
  done
  
- test_expect_success 'git reflog expire honors core.sharedRepository' '
+ test_expect_success POSIXPERM 'git reflog expire honors core.sharedRepository' '
        git config core.sharedRepository group &&
        git reflog expire --all &&
        actual="$(ls -l .git/logs/refs/heads/master)" &&
@@@ -126,7 -126,7 +126,7 @@@
        esac
  '
  
--test_expect_success 'forced modes' '
++test_expect_success POSIXPERM 'forced modes' '
        mkdir -p templates/hooks &&
        echo update-server-info >templates/hooks/post-update &&
        chmod +x templates/hooks/post-update &&
@@@ -141,14 -141,11 +141,14 @@@
                git commit -a -m initial &&
                git repack
        ) &&
 -      find new/.git -print |
 +      # List repository files meant to be protected; note that
 +      # COMMIT_EDITMSG does not matter---0mode is not about a
 +      # repository with a work tree.
 +      find new/.git -type f -name COMMIT_EDITMSG -prune -o -print |
        xargs ls -ld >actual &&
  
        # Everything must be unaccessible to others
 -      test -z "$(sed -n -e "/^.......---/d" actual)" &&
 +      test -z "$(sed -e "/^.......---/d" actual)" &&
  
        # All directories must have either 2770 or 770
        test -z "$(sed -n -e "/^drwxrw[sx]---/d" -e "/^d/p" actual)" &&
@@@ -159,11 -156,10 +159,11 @@@
                p
        }" actual)" &&
  
 -      # All files inside objects must be 0440
 +      # All files inside objects must be accessible by us
        test -z "$(sed -n -e "/objects\//{
                /^d/d
 -              /^-r--r-----/d
 +              /^-r.-r.----/d
 +              p
        }" actual)"
  '