Use mptcp_lib_print_ok(), _warn() and _err() to instead print_results()
in test_pass(), _skip() and _fail() in userspace_pm.sh to print test
results with colors.

Having colors helps to quickly identify issues when looking at a long
list of output logs and results.

Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 tools/testing/selftests/net/mptcp/userspace_pm.sh | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/userspace_pm.sh b/tools/testing/selftests/net/mptcp/userspace_pm.sh
index bba42f165340..27ddbd8cf03f 100755
--- a/tools/testing/selftests/net/mptcp/userspace_pm.sh
+++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh
@@ -74,27 +74,22 @@ print_test()
 	_printf "%-63s" "${test_name}"
 }
 
-print_results()
-{
-	_printf "[%s]\n" "${1}"
-}
-
 test_pass()
 {
-	print_results " OK "
+	mptcp_lib_print_ok "[ ok ]${1:+ ${*}}"
 	mptcp_lib_result_pass "${test_name}"
 }
 
 test_skip()
 {
-	print_results "SKIP"
+	mptcp_lib_print_warn "[skip]${1:+ ${*}}"
 	mptcp_lib_result_skip "${test_name}"
 }
 
 # $1: msg
 test_fail()
 {
-	print_results "FAIL"
+	mptcp_lib_print_err "[fail]${1:+ ${*}}"
 	ret=1
 
 	if [ -n "${1}" ]; then
-- 
2.35.3