submodule: don't rely on overlayed config when setting diffopts

diff --git a/t/t5512-ls-remote.sh b/t/t5512-ls-remote.sh
index 94fc9be9ced3c89214b29e11c95201a38cc99d74..02106c9226605f3b241160a8b46e6dbf3a9d3fc0 100755 (executable)
--- a/t/t5512-ls-remote.sh
+++ b/t/t5512-ls-remote.sh
@@ -85,8 +85,15 @@ test_expect_success 'use branch.<name>.remote if possible' '
 '
 
 test_expect_success 'confuses pattern as remote when no remote specified' '
-       cat >exp <<-\EOF &&
-       fatal: '\''refs*master'\'' does not appear to be a git repository
+       if test_have_prereq MINGW
+       then
+               # Windows does not like asterisks in pathname
+               does_not_exist=master
+       else
+               does_not_exist="refs*master"
+       fi &&
+       cat >exp <<-EOF &&
+       fatal: '\''$does_not_exist'\'' does not appear to be a git repository
        fatal: Could not read from remote repository.
 
        Please make sure you have the correct access rights
@@ -98,7 +105,7 @@ test_expect_success 'confuses pattern as remote when no remote specified' '
        # fetch <branch>.
        # We could just as easily have used "master"; the "*" emphasizes its
        # role as a pattern.
-       test_must_fail git ls-remote refs*master >actual 2>&1 &&
+       test_must_fail git ls-remote "$does_not_exist" >actual 2>&1 &&
        test_i18ncmp exp actual
 '