Fixed: Return an error when a required argument is missing

--HG--
branch : develop

code/nel/src/misc/cmd_args.cpp

@@ -141,7 +141,7 @@ bool CCmdArgs::needAdditionalArg() const
 		const TArg &arg = _Args[i];
 
 		// they don't have any short or long name, but need a name in help
-		if (arg.shortName.empty() && arg.longName.empty() && !arg.helpName.empty() && arg.required)
+		if (arg.shortName.empty() && arg.longName.empty() && !arg.helpName.empty() && arg.required && !arg.found)
 			return true;
 	}
 
@@ -363,7 +363,7 @@ bool CCmdArgs::parse(const std::vector<std::string> &argv)
 	}
 
 	// process help if requested or if required arguments are missing
-	if (haveLongArg("help") || (needAdditionalArg() && !haveAdditionalArg()))
+	if (haveLongArg("help") || needAdditionalArg())
 	{
 		displayHelp();
 		return false;