Documentation: refactor common operations into variables

diff --git a/t/t4041-diff-submodule-option.sh b/t/t4041-diff-submodule-option.sh
index 463d63bde0f72bb5add9edff762e38f0b5b85ae5..e4328964a7599846c9a8f96a01882aff2dc19296 100755 (executable)
--- a/t/t4041-diff-submodule-option.sh
+++ b/t/t4041-diff-submodule-option.sh
@@ -26,8 +26,10 @@ add_file () {
                        echo "$name" >"$name" &&
                        git add "$name" &&
                        test_tick &&
-                       msg_added_iso88591=$(echo "Add $name ($added $name)" | iconv -f utf-8 -t $test_encoding) &&
-                       git -c "i18n.commitEncoding=$test_encoding" commit -m "$msg_added_iso88591"
+                       # "git commit -m" would break MinGW, as Windows refuse to pass
+                       # $test_encoding encoded parameter to git.
+                       echo "Add $name ($added $name)" | iconv -f utf-8 -t $test_encoding |
+                       git -c "i18n.commitEncoding=$test_encoding" commit -F -
                done >/dev/null &&
                git rev-parse --short --verify HEAD
        )