Change logic to check for unmanaged nics

Resolves issue mentioned in #4327

setup/so-whiptail

@@ -1640,7 +1640,8 @@ whiptail_sensor_nics() {
 	IFS=' ' read -ra BNICS <<< "$BNICS"
 
 	for bond_nic in "${BNICS[@]}"; do
-		if [[ "${nmcli_dev_status_list}" =~ $bond_nic\:unmanaged ]]; then
+		for dev_status in "${nmcli_dev_status_list[@]}"; do
+			if [[ $dev_status == "${bond_nic}:unmanaged" ]]; then
 				whiptail \
 					--title "$whiptail_title" \
 					--msgbox "$bond_nic is unmanaged by Network Manager. Please remove it from other network management tools then re-run setup." \
@@ -1648,6 +1649,7 @@ whiptail_sensor_nics() {
 				exit
 			fi
 		done
+	done
 }
 
 whiptail_set_hostname() {