t/t5100-mailinfo.sh: use the $( ... ) construct for command substitution

diff --git a/t/t1401-symbolic-ref.sh b/t/t1401-symbolic-ref.sh
index 20b022ae3397552fd3cd4e42553f4cd3575049f5..e6c5830d70e9de7ea61c91d2ddc157dfd5fc9734 100755 (executable)
--- a/t/t1401-symbolic-ref.sh
+++ b/t/t1401-symbolic-ref.sh
@@ -29,7 +29,7 @@ reset_to_sane
 
 test_expect_success 'symbolic-ref refuses bare sha1' '
        echo content >file && git add file && git commit -m one &&
-       test_must_fail git symbolic-ref HEAD `git rev-parse HEAD`
+       test_must_fail git symbolic-ref HEAD $(git rev-parse HEAD)
 '
 reset_to_sane