Correct spelling mistakes.

code/server/sv_main.c

@@ -209,7 +209,7 @@ void QDECL SV_SendServerCommand(client_t *cl, const char *fmt, ...) {
 		Com_Printf ("broadcast: %s\n", SV_ExpandNewlines((char *)message) );
 	}
 
-	// send the data to all relevent clients
+	// send the data to all relevant clients
 	for (j = 0, client = svs.clients; j < sv_maxclients->integer ; j++, client++) {
 		SV_AddServerCommand( client, (char *)message );
 	}