diff --git a/t/t4002-diff-basic.sh b/t/t4002-diff-basic.sh
index ea52e5b91b7..d524d4057dc 100755
--- a/t/t4002-diff-basic.sh
+++ b/t/t4002-diff-basic.sh
@@ -284,132 +284,131 @@ cmp_diff_files_output () {
     test_cmp "$1" .test-tmp
 }
 
-test_expect_success \
-    'diff-tree of known trees.' \
-    'git diff-tree $tree_O $tree_A >.test-a &&
-     cmp -s .test-a .test-plain-OA'
-
-test_expect_success \
-    'diff-tree of known trees.' \
-    'git diff-tree -r $tree_O $tree_A >.test-a &&
-     cmp -s .test-a .test-recursive-OA'
-
-test_expect_success \
-    'diff-tree of known trees.' \
-    'git diff-tree $tree_O $tree_B >.test-a &&
-     cmp -s .test-a .test-plain-OB'
-
-test_expect_success \
-    'diff-tree of known trees.' \
-    'git diff-tree -r $tree_O $tree_B >.test-a &&
-     cmp -s .test-a .test-recursive-OB'
-
-test_expect_success \
-    'diff-tree of known trees.' \
-    'git diff-tree $tree_A $tree_B >.test-a &&
-     cmp -s .test-a .test-plain-AB'
-
-test_expect_success \
-    'diff-tree of known trees.' \
-    'git diff-tree -r $tree_A $tree_B >.test-a &&
-     cmp -s .test-a .test-recursive-AB'
-
-test_expect_success \
-    'diff-tree --stdin of known trees.' \
-    'echo $tree_A $tree_B | git diff-tree --stdin > .test-a &&
-     echo $tree_A $tree_B > .test-plain-ABx &&
-     cat .test-plain-AB >> .test-plain-ABx &&
-     cmp -s .test-a .test-plain-ABx'
-
-test_expect_success \
-    'diff-tree --stdin of known trees.' \
-    'echo $tree_A $tree_B | git diff-tree -r --stdin > .test-a &&
-     echo $tree_A $tree_B > .test-recursive-ABx &&
-     cat .test-recursive-AB >> .test-recursive-ABx &&
-     cmp -s .test-a .test-recursive-ABx'
-
-test_expect_success \
-    'diff-cache O with A in cache' \
-    'git read-tree $tree_A &&
-     git diff-index --cached $tree_O >.test-a &&
-     cmp -s .test-a .test-recursive-OA'
-
-test_expect_success \
-    'diff-cache O with B in cache' \
-    'git read-tree $tree_B &&
-     git diff-index --cached $tree_O >.test-a &&
-     cmp -s .test-a .test-recursive-OB'
-
-test_expect_success \
-    'diff-cache A with B in cache' \
-    'git read-tree $tree_B &&
-     git diff-index --cached $tree_A >.test-a &&
-     cmp -s .test-a .test-recursive-AB'
-
-test_expect_success \
-    'diff-files with O in cache and A checked out' \
-    'rm -fr Z [A-Z][A-Z] &&
-     git read-tree $tree_A &&
-     git checkout-index -f -a &&
-     git read-tree --reset $tree_O &&
-     test_must_fail git update-index --refresh -q &&
-     git diff-files >.test-a &&
-     cmp_diff_files_output .test-a .test-recursive-OA'
-
-test_expect_success \
-    'diff-files with O in cache and B checked out' \
-    'rm -fr Z [A-Z][A-Z] &&
-     git read-tree $tree_B &&
-     git checkout-index -f -a &&
-     git read-tree --reset $tree_O &&
-     test_must_fail git update-index --refresh -q &&
-     git diff-files >.test-a &&
-     cmp_diff_files_output .test-a .test-recursive-OB'
-
-test_expect_success \
-    'diff-files with A in cache and B checked out' \
-    'rm -fr Z [A-Z][A-Z] &&
-     git read-tree $tree_B &&
-     git checkout-index -f -a &&
-     git read-tree --reset $tree_A &&
-     test_must_fail git update-index --refresh -q &&
-     git diff-files >.test-a &&
-     cmp_diff_files_output .test-a .test-recursive-AB'
+test_expect_success 'diff-tree of known trees.' '
+	git diff-tree $tree_O $tree_A >.test-a &&
+	cmp -s .test-a .test-plain-OA
+'
+
+test_expect_success 'diff-tree of known trees.' '
+	git diff-tree -r $tree_O $tree_A >.test-a &&
+	cmp -s .test-a .test-recursive-OA
+'
+
+test_expect_success 'diff-tree of known trees.' '
+	git diff-tree $tree_O $tree_B >.test-a &&
+	cmp -s .test-a .test-plain-OB
+'
+
+test_expect_success 'diff-tree of known trees.' '
+	git diff-tree -r $tree_O $tree_B >.test-a &&
+	cmp -s .test-a .test-recursive-OB
+'
+
+test_expect_success 'diff-tree of known trees.' '
+	git diff-tree $tree_A $tree_B >.test-a &&
+	cmp -s .test-a .test-plain-AB
+'
+
+test_expect_success 'diff-tree of known trees.' '
+	git diff-tree -r $tree_A $tree_B >.test-a &&
+	cmp -s .test-a .test-recursive-AB
+'
+
+test_expect_success 'diff-tree --stdin of known trees.' '
+	echo $tree_A $tree_B | git diff-tree --stdin > .test-a &&
+	echo $tree_A $tree_B > .test-plain-ABx &&
+	cat .test-plain-AB >> .test-plain-ABx &&
+	cmp -s .test-a .test-plain-ABx
+'
+
+test_expect_success 'diff-tree --stdin of known trees.' '
+	echo $tree_A $tree_B | git diff-tree -r --stdin > .test-a &&
+	echo $tree_A $tree_B > .test-recursive-ABx &&
+	cat .test-recursive-AB >> .test-recursive-ABx &&
+	cmp -s .test-a .test-recursive-ABx
+'
+
+test_expect_success 'diff-cache O with A in cache' '
+	git read-tree $tree_A &&
+	git diff-index --cached $tree_O >.test-a &&
+	cmp -s .test-a .test-recursive-OA
+'
+
+test_expect_success 'diff-cache O with B in cache' '
+	git read-tree $tree_B &&
+	git diff-index --cached $tree_O >.test-a &&
+	cmp -s .test-a .test-recursive-OB
+'
+
+test_expect_success 'diff-cache A with B in cache' '
+	git read-tree $tree_B &&
+	git diff-index --cached $tree_A >.test-a &&
+	cmp -s .test-a .test-recursive-AB
+'
+
+test_expect_success 'diff-files with O in cache and A checked out' '
+	rm -fr Z [A-Z][A-Z] &&
+	git read-tree $tree_A &&
+	git checkout-index -f -a &&
+	git read-tree --reset $tree_O &&
+	test_must_fail git update-index --refresh -q &&
+	git diff-files >.test-a &&
+	cmp_diff_files_output .test-a .test-recursive-OA
+'
+
+test_expect_success 'diff-files with O in cache and B checked out' '
+	rm -fr Z [A-Z][A-Z] &&
+	git read-tree $tree_B &&
+	git checkout-index -f -a &&
+	git read-tree --reset $tree_O &&
+	test_must_fail git update-index --refresh -q &&
+	git diff-files >.test-a &&
+	cmp_diff_files_output .test-a .test-recursive-OB
+'
+
+test_expect_success 'diff-files with A in cache and B checked out' '
+	rm -fr Z [A-Z][A-Z] &&
+	git read-tree $tree_B &&
+	git checkout-index -f -a &&
+	git read-tree --reset $tree_A &&
+	test_must_fail git update-index --refresh -q &&
+	git diff-files >.test-a &&
+	cmp_diff_files_output .test-a .test-recursive-AB
+'
 
 ################################################################
 # Now we have established the baseline, we do not have to
 # rely on individual object ID values that much.
 
-test_expect_success \
-    'diff-tree O A == diff-tree -R A O' \
-    'git diff-tree $tree_O $tree_A >.test-a &&
-    git diff-tree -R $tree_A $tree_O >.test-b &&
-    cmp -s .test-a .test-b'
-
-test_expect_success \
-    'diff-tree -r O A == diff-tree -r -R A O' \
-    'git diff-tree -r $tree_O $tree_A >.test-a &&
-    git diff-tree -r -R $tree_A $tree_O >.test-b &&
-    cmp -s .test-a .test-b'
-
-test_expect_success \
-    'diff-tree B A == diff-tree -R A B' \
-    'git diff-tree $tree_B $tree_A >.test-a &&
-    git diff-tree -R $tree_A $tree_B >.test-b &&
-    cmp -s .test-a .test-b'
-
-test_expect_success \
-    'diff-tree -r B A == diff-tree -r -R A B' \
-    'git diff-tree -r $tree_B $tree_A >.test-a &&
-    git diff-tree -r -R $tree_A $tree_B >.test-b &&
-    cmp -s .test-a .test-b'
-
-test_expect_success \
-    'diff can read from stdin' \
-    'test_must_fail git diff --no-index -- MN - < NN |
-        grep -v "^index" | sed "s#/-#/NN#" >.test-a &&
-    test_must_fail git diff --no-index -- MN NN |
-        grep -v "^index" >.test-b &&
-    test_cmp .test-a .test-b'
+test_expect_success 'diff-tree O A == diff-tree -R A O' '
+	git diff-tree $tree_O $tree_A >.test-a &&
+	git diff-tree -R $tree_A $tree_O >.test-b &&
+	cmp -s .test-a .test-b
+'
+
+test_expect_success 'diff-tree -r O A == diff-tree -r -R A O' '
+	git diff-tree -r $tree_O $tree_A >.test-a &&
+	git diff-tree -r -R $tree_A $tree_O >.test-b &&
+	cmp -s .test-a .test-b
+'
+
+test_expect_success 'diff-tree B A == diff-tree -R A B' '
+	git diff-tree $tree_B $tree_A >.test-a &&
+	git diff-tree -R $tree_A $tree_B >.test-b &&
+	cmp -s .test-a .test-b
+'
+
+test_expect_success 'diff-tree -r B A == diff-tree -r -R A B' '
+	git diff-tree -r $tree_B $tree_A >.test-a &&
+	git diff-tree -r -R $tree_A $tree_B >.test-b &&
+	cmp -s .test-a .test-b'
+
+test_expect_success'diff can read from stdin' '
+	test_must_fail git diff --no-index -- MN - < NN |
+		grep -v "^index" | sed "s#/-#/NN#" >.test-a &&
+	test_must_fail git diff --no-index -- MN NN |
+		grep -v "^index" >.test-b &&
+	test_cmp .test-a .test-b
+'
 
 test_done
