[PATCH net-next] selftests: mptcp: lib: fix shellcheck errors

[Matthieu Baerts (NGI0)]

It looks like we missed these two errors recently:

  - SC2068: Double quote array expansions to avoid re-splitting elements.
  - SC2145: Argument mixes string and array. Use * or separate argument.

Two simple fixes, it is not supposed to change the behaviour as the
variable names should not have any spaces in their names. Still, better
to fix them to easily spot new issues.

Fixes: f265d3119a29 ("selftests: mptcp: lib: use setup/cleanup_ns helpers")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
---
Notes:
  - The mentioned commit is currently only in 'net-next', not in 'net'.
---
 tools/testing/selftests/net/mptcp/mptcp_lib.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_lib.sh b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
index 194c8fc2e55a..438280e68434 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_lib.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
@@ -428,8 +428,8 @@ mptcp_lib_check_tools() {
 }
 
 mptcp_lib_ns_init() {
-	if ! setup_ns ${@}; then
-		mptcp_lib_pr_fail "Failed to setup namespace ${@}"
+	if ! setup_ns "${@}"; then
+		mptcp_lib_pr_fail "Failed to setup namespaces ${*}"
 		exit ${KSFT_FAIL}
 	fi
 

---
base-commit: 2146b7dd354c2a1384381ca3cd5751bfff6137d6
change-id: 20240712-upstream-net-next-20240712-selftests-mptcp-fix-shellcheck-6f17e65c6c1b

Best regards,
-- 
Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>