fixed error with -4 option, reported by Georges Hatem

#120 (comment)

Author: paweld

generator/Lazarus/src/generator.lpr

@@ -37,7 +37,7 @@ procedure TOneBRCGenerator.DoRun;
   tmpLineCount, tmpLineEnd: String;
 begin
   // quick check parameters
-  ErrorMsg:= CheckOptions(Format('%s%s%s:%s:%s:%s:%s',[
+  ErrorMsg:= CheckOptions(Format('%s%s%s:%s:%s:%s%s:',[
       cShortOptHelp,
       cShortOptVersion,
       cShortOptInput,