headers: normalize the spelling of some header guards

diff --git a/t/t0000-basic.sh b/t/t0000-basic.sh
index 391f910c6a9fceff7a03e523076399f2db1cc0f0..26601e698bd3abebd2e1f10ba6012f80c65ffa85 100755 (executable)
--- a/t/t0000-basic.sh
+++ b/t/t0000-basic.sh
@@ -1097,7 +1097,7 @@ test_expect_success 'validate git diff-files output for a know cache/work tree s
 :120000 120000 $(test_oid subp3s) $ZERO_OID M  path3/subp3/file3sym
 EOF
        git diff-files >current &&
-       test_cmp current expected
+       test_cmp expected current
 '
 
 test_expect_success 'git update-index --refresh should succeed' '