headers: normalize the spelling of some header guards

diff --git a/t/t4203-mailmap.sh b/t/t4203-mailmap.sh
index 0dd8b65d7cdec2ada739d7e0b524fd3c66dd5ef4..43b1522ea21a9c531c64fdba3b6f3bcde680063a 100755 (executable)
--- a/t/t4203-mailmap.sh
+++ b/t/t4203-mailmap.sh
@@ -461,11 +461,9 @@ test_expect_success 'Grep author with log.mailmap' '
        test_cmp expect actual
 '
 
->expect
-
 test_expect_success 'Only grep replaced author with --use-mailmap' '
        git log --use-mailmap --author "<cto@coompany.xx>" >actual &&
-       test_cmp expect actual
+       test_must_be_empty actual
 '
 
 # git blame