submodule foreach: fix "<command> --quiet" not being respected

diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh
index 9e59e5a5dd031f036237dafc3ebb1e3854883caa..36b50d0b4c1255408d57b4e8b583cfcd41ce9c0d 100755 (executable)
--- a/t/t7001-mv.sh
+++ b/t/t7001-mv.sh
@@ -384,7 +384,7 @@ test_expect_success 'mv does not complain when no .gitmodules file is found' '
        entry="$(git ls-files --stage sub | cut -f 1)" &&
        mkdir mod &&
        git mv sub mod/sub 2>actual.err &&
-       ! test -s actual.err &&
+       test_must_be_empty actual.err &&
        ! test -e sub &&
        [ "$entry" = "$(git ls-files --stage mod/sub | cut -f 1)" ] &&
        (
@@ -408,7 +408,7 @@ test_expect_success 'mv will error out on a modified .gitmodules file unless sta
        git diff-files --quiet -- sub &&
        git add .gitmodules &&
        git mv sub mod/sub 2>actual.err &&
-       ! test -s actual.err &&
+       test_must_be_empty actual.err &&
        ! test -e sub &&
        [ "$entry" = "$(git ls-files --stage mod/sub | cut -f 1)" ] &&
        (
@@ -469,7 +469,7 @@ test_expect_success 'checking out a commit before submodule moved needs manual u
        git update-index --refresh &&
        git diff-files --quiet -- sub .gitmodules &&
        git status -s sub2 >actual &&
-       ! test -s actual
+       test_must_be_empty actual
 '
 
 test_expect_success 'mv -k does not accidentally destroy submodules' '