rerere: avoid buffer overrun

diff --git a/t/t7011-skip-worktree-reading.sh b/t/t7011-skip-worktree-reading.sh
index 88d60c1ce2933141c0800a76fdebca9037803258..84f41451ec4e34b6438313545ca886fbef75f34d 100755 (executable)
--- a/t/t7011-skip-worktree-reading.sh
+++ b/t/t7011-skip-worktree-reading.sh
@@ -23,17 +23,15 @@ S sub/1
 H sub/2
 EOF
 
-NULL_SHA1=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
-
 setup_absent() {
        test -f 1 && rm 1
        git update-index --remove 1 &&
-       git update-index --add --cacheinfo 100644 $NULL_SHA1 1 &&
+       git update-index --add --cacheinfo 100644 $EMPTY_BLOB 1 &&
        git update-index --skip-worktree 1
 }
 
 test_absent() {
-       echo "100644 $NULL_SHA1 0       1" > expected &&
+       echo "100644 $EMPTY_BLOB 0      1" > expected &&
        git ls-files --stage 1 > result &&
        test_cmp expected result &&
        test ! -f 1
@@ -42,12 +40,12 @@ test_absent() {
 setup_dirty() {
        git update-index --force-remove 1 &&
        echo dirty > 1 &&
-       git update-index --add --cacheinfo 100644 $NULL_SHA1 1 &&
+       git update-index --add --cacheinfo 100644 $EMPTY_BLOB 1 &&
        git update-index --skip-worktree 1
 }
 
 test_dirty() {
-       echo "100644 $NULL_SHA1 0       1" > expected &&
+       echo "100644 $EMPTY_BLOB 0      1" > expected &&
        git ls-files --stage 1 > result &&
        test_cmp expected result &&
        echo dirty > expected
@@ -120,7 +118,7 @@ test_expect_success 'grep with skip-worktree file' '
        test "$(git grep --no-ext-grep test)" = "1:test"
 '
 
-echo ":000000 100644 $_z40 $NULL_SHA1 A        1" > expected
+echo ":000000 100644 $_z40 $EMPTY_BLOB A       1" > expected
 test_expect_success 'diff-index does not examine skip-worktree absent entries' '
        setup_absent &&
        git diff-index HEAD -- 1 > result &&