# write the index and that together with -u it doesn't touch the work tree.
 #
 read_tree_must_succeed () {
-    git ls-files -s >pre-dry-run &&
-    git read-tree -n "$@" &&
-    git ls-files -s >post-dry-run &&
-    test_cmp pre-dry-run post-dry-run &&
-    git read-tree "$@"
+       git ls-files -s >pre-dry-run &&
+       git read-tree -n "$@" &&
+       git ls-files -s >post-dry-run &&
+       test_cmp pre-dry-run post-dry-run &&
+       git read-tree "$@"
 }
 
 read_tree_must_fail () {
-    git ls-files -s >pre-dry-run &&
-    test_must_fail git read-tree -n "$@" &&
-    git ls-files -s >post-dry-run &&
-    test_cmp pre-dry-run post-dry-run &&
-    test_must_fail git read-tree "$@"
+       git ls-files -s >pre-dry-run &&
+       test_must_fail git read-tree -n "$@" &&
+       git ls-files -s >post-dry-run &&
+       test_cmp pre-dry-run post-dry-run &&
+       test_must_fail git read-tree "$@"
 }
 
 read_tree_u_must_succeed () {
-    git ls-files -s >pre-dry-run &&
-    git diff-files -p >pre-dry-run-wt &&
-    git read-tree -n "$@" &&
-    git ls-files -s >post-dry-run &&
-    git diff-files -p >post-dry-run-wt &&
-    test_cmp pre-dry-run post-dry-run &&
-    test_cmp pre-dry-run-wt post-dry-run-wt &&
-    git read-tree "$@"
+       git ls-files -s >pre-dry-run &&
+       git diff-files -p >pre-dry-run-wt &&
+       git read-tree -n "$@" &&
+       git ls-files -s >post-dry-run &&
+       git diff-files -p >post-dry-run-wt &&
+       test_cmp pre-dry-run post-dry-run &&
+       test_cmp pre-dry-run-wt post-dry-run-wt &&
+       git read-tree "$@"
 }
 
 read_tree_u_must_fail () {
-    git ls-files -s >pre-dry-run &&
-    git diff-files -p >pre-dry-run-wt &&
-    test_must_fail git read-tree -n "$@" &&
-    git ls-files -s >post-dry-run &&
-    git diff-files -p >post-dry-run-wt &&
-    test_cmp pre-dry-run post-dry-run &&
-    test_cmp pre-dry-run-wt post-dry-run-wt &&
-    test_must_fail git read-tree "$@"
+       git ls-files -s >pre-dry-run &&
+       git diff-files -p >pre-dry-run-wt &&
+       test_must_fail git read-tree -n "$@" &&
+       git ls-files -s >post-dry-run &&
+       git diff-files -p >post-dry-run-wt &&
+       test_cmp pre-dry-run post-dry-run &&
+       test_cmp pre-dry-run-wt post-dry-run-wt &&
+       test_must_fail git read-tree "$@"
 }