tests/lib.sh: adjust to pytest logging style

Black on white is still the best to read. So we only style FAILED or
PASSED in green or red. This is also tested with different background
colors. As we only style PASSED or FAILED it works without any problems

Signed-off-by: Jonatan Schlag <jonatan.schlag@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

tests/lib.sh

@@ -12,11 +12,11 @@ LIB_DIR="$(dirname "${LIB_DIR}")"
 . ${LIB_DIR}/lib_color.sh
 
 log_test_failed(){
-	echo -e "${CLR_RED_BG}Test failed: ${*}${CLR_RESET}'"
+	echo -e "${CLR_RED_R}FAILED:${CLR_RESET} ${*}"
 }
 
 log_test_succeded(){
-	echo -e "${CLR_GREEN_BG}Test succeded: ${*}${CLR_RESET}"
+	echo -e "${CLR_GREEN_R}PASSED:${CLR_RESET} ${*}"
 }
 
 test_command() {