Add names for the numerics used by the core.

modules/protocol/ngircd.cpp

@@ -10,6 +10,7 @@
  */
 
 #include "module.h"
+#include "numeric.h"
 
 namespace
 {
@@ -72,7 +73,7 @@ public:
 		SendServer(Me);
 
 		/* finish the enhanced server handshake and register the connection */
-		this->SendNumeric(376, "*", "End of MOTD command");
+		this->SendNumeric(RPL_ENDOFMOTD, "*", "End of MOTD command");
 	}
 
 	void SendForceNickChange(User *u, const Anope::string &newnick, time_t when) override