fix message

Author: brakkioris

check-plugins/dir-size/dir-size

@@ -177,6 +177,7 @@ def main():
     msg = ''
     table_data = []
     alert_count = 0
+    perfdata = ''
 
     # convert human readable nagios ranges to something that the Linuxfabrik libraries
     # can understand
@@ -245,7 +246,7 @@ def main():
         state = lib.base.get_worst(state, table_data[i]['state'])
 
     # build the message
-    msg += f'{len(table_data)} {lib.txt.pluralize("file", len(table_data))} checked. '
+    msg += f'{len(table_data)} {lib.txt.pluralize("directory", len(table_data))} checked. '
     if state == STATE_OK:
         msg += (
             f'{lib.txt.pluralize("", len(table_data), "It is,All are")}'
@@ -281,6 +282,7 @@ def main():
             ],
         )
 
+
     # over and out
     lib.base.oao(msg, state, always_ok=args.ALWAYS_OK)