t1301: fix typo in error message

Signed-off-by: Han-Wen Nienhuys <[email protected]>
Reviewed-by: Ævar Arnfjörð Bjarmason <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: hanwen

t/t1301-shared-repo.sh

@@ -124,7 +124,7 @@ test_expect_success POSIXPERM 'git reflog expire honors core.sharedRepository' '
 		: happy
 		;;
 	*)
-		echo Ooops, .git/logs/refs/heads/main is not 0662 [$actual]
+		echo Ooops, .git/logs/refs/heads/main is not 066x [$actual]
 		false
 		;;
 	esac