[Commands] Cleanup #serverrules Command. (#2139)

- Cleanup messages and logic.
- Change separator from new line to pipe separator, as new line was non-functional.

zone/gm_commands/serverrules.cpp

@@ -2,6 +2,6 @@
 
 void command_serverrules(Client *c, const Seperator *sep)
 {
-	c->SendRules(c);
+	c->SendRules();
 }