test-lib: parse options in a for loop to keep $@ intact

diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 3c6b185b60891c164f56a638071873051420fdac..d01ad8eb2587ba32637d7ec8161811696a0aec34 100755 (executable)
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -1249,7 +1249,7 @@ test_expect_success 'teardown after ref completion' '
 
 test_path_completion ()
 {
-       test $# = 2 || error "bug in the test script: not 2 parameters to test_path_completion"
+       test $# = 2 || BUG "not 2 parameters to test_path_completion"
 
        local cur="$1" expected="$2"
        echo "$expected" >expected &&