refactor(icinga-topflap-services): improve variable usage

Author: markuslf

check-plugins/icinga-topflap-services/icinga-topflap-services

@@ -281,11 +281,10 @@ def main():
         state = lib.base.get_worst(state, data[i]['state'])
 
     # build the message
-    state_messages = {
+    msg = {
         STATE_CRIT: 'There are critical errors.',
         STATE_WARN: 'There are warnings.'
-    }
-    msg = state_messages.get(state, 'Everything is ok.')
+    }.get(state, 'Everything is ok.')
     msg += f' (lookback={lib.human.seconds2human(args.LOOKBACK)} warn={args.WARN} crit={args.CRIT})'
     if data:
         msg +=  '\n\n' + lib.base.get_table(