Added http://hostname:port/ printout when server starts.

main.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"log"
 	"net/http"
+	"os"
 )
 
 var port = flag.Int("port", 8000, "port from which to serve")
@@ -18,9 +19,13 @@ func logger(h http.Handler) http.Handler {
 
 func main() {
 	flag.Parse()
+	hostname, err := os.Hostname()
+	if err != nil {
+		log.Fatal("problem getting hostname:", err)
+	}
+	log.Printf("serving on: http://%s:%d/", hostname, *port)
 	addr := fmt.Sprintf(":%d", *port)
 	fh := http.FileServer(http.Dir("./"))
-	http.ListenAndServe(":8080", logger(fh))
 	if err := http.ListenAndServe(addr, logger(fh)); err != nil {
 		log.Fatal(err)
 	}