generalize server name/listen.

ergonomadic.go

@@ -1,10 +1,13 @@
 package main
 
 import (
+	"flag"
 	"irc"
 )
 
 func main() {
-	server := irc.NewServer()
-	server.Listen(":6667")
+	name := flag.String("name", "localhost", "A name for the server")
+	listen := flag.String("listen", ":6667", "interface to listen on")
+    flag.Parse()
+	irc.NewServer(*name).Listen(*listen)
 }