Only consider the last line

Since other console output may occur during add

src/freedombone-adduser

@@ -209,7 +209,7 @@ do
     if [[ $(function_exists add_user_${app_name}) == "1" ]]; then
         echo $"Adding user to ${app_name}"
         app_load_variables ${app_name}
-        retval=$(add_user_${app_name} "$ADD_USERNAME" "$NEW_USER_PASSWORD")
+        retval=$(add_user_${app_name} "$ADD_USERNAME" "$NEW_USER_PASSWORD" | tail -n 1)
         if [[ $retval != '0' ]]; then
             echo $"Failed with error code ${retval}"
             ${PROJECT_NAME}-rmuser $ADD_USERNAME --force