t/t1304: avoid -d option to setfacl

Some platforms (Solaris) have a setfacl whose -d switch works differently
than the one on Linux.  On Linux, it causes all operations to be applied
to the Default ACL.  There is a notation for operating on the Default ACL:

   [d[efault]:] [u[ser]:]uid [:perms]

so use it instead of the -d switch.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t1304-default-acl.sh

@@ -46,8 +46,8 @@ dirs_to_set="./ .git/ .git/objects/ .git/objects/pack/"
 
 test_expect_success 'Setup test repo' '
 	setfacl -m u:root:rwx          $dirs_to_set &&
-	setfacl -d -m u:"$LOGNAME":rwx $dirs_to_set &&
-	setfacl -d -m u:root:rwx       $dirs_to_set &&
+	setfacl -m d:u:"$LOGNAME":rwx  $dirs_to_set &&
+	setfacl -m d:u:root:rwx        $dirs_to_set &&
 
 	touch file.txt &&
 	git add file.txt &&