git-send-email.perl: make initial In-Reply-To apply only to first email

diff --git a/t/t4117-apply-reject.sh b/t/t4117-apply-reject.sh
index 659e17c92e474ad5828656f83d28cab2a5ecac64..e9ccd161ee96a5bdbb4bf77de406ea51dacfb5de 100755 (executable)
--- a/t/t4117-apply-reject.sh
+++ b/t/t4117-apply-reject.sh
@@ -54,7 +54,7 @@ test_expect_success 'apply without --reject should fail' '
                exit 1
        fi
 
-       git diff file1 saved.file1
+       test_cmp file1 saved.file1
 '
 
 test_expect_success 'apply without --reject should fail' '
@@ -65,7 +65,7 @@ test_expect_success 'apply without --reject should fail' '
                exit 1
        fi
 
-       git diff file1 saved.file1
+       test_cmp file1 saved.file1
 '
 
 test_expect_success 'apply with --reject should fail but update the file' '
@@ -79,7 +79,7 @@ test_expect_success 'apply with --reject should fail but update the file' '
                exit 1
        fi
 
-       git diff file1 expected &&
+       test_cmp file1 expected &&
 
        cat file1.rej &&
 
@@ -105,7 +105,7 @@ test_expect_success 'apply with --reject should fail but update the file' '
                echo "file1 still exists?"
                exit 1
        }
-       git diff file2 expected &&
+       test_cmp file2 expected &&
 
        cat file2.rej &&
 
@@ -132,7 +132,7 @@ test_expect_success 'the same test with --verbose' '
                echo "file1 still exists?"
                exit 1
        }
-       git diff file2 expected &&
+       test_cmp file2 expected &&
 
        cat file2.rej &&
 
@@ -151,7 +151,7 @@ test_expect_success 'apply cleanly with --verbose' '
 
        git apply --verbose patch.1 &&
 
-       git diff file1 clean
+       test_cmp file1 clean
 '
 
 test_done