- user->WriteNumeric(ERR_NOSUCHNICK, "%s :No such nick/channel", !parameters[userindex].empty() ? parameters[userindex].c_str() : "*");
- user->WriteNumeric(RPL_ENDOFWHOIS, "%s :End of /WHOIS list.", !parameters[userindex].empty() ? parameters[userindex].c_str() : "*");
+ user->WriteNumeric(Numerics::NoSuchNick(!parameters[userindex].empty() ? parameters[userindex] : "*"));
+ user->WriteNumeric(RPL_ENDOFWHOIS, (!parameters[userindex].empty() ? parameters[userindex] : "*"), "End of /WHOIS list.");