Simplify printing

nameserver/http.go

@@ -5,7 +5,6 @@ import (
 	"github.com/gorilla/mux"
 	"github.com/miekg/dns"
 	. "github.com/weaveworks/weave/common"
-	"io"
 	"log"
 	"net"
 	"net/http"
@@ -22,8 +21,8 @@ func ListenHTTP(version string, server *DNSServer, domain string, db Zone, port
 	muxRouter := mux.NewRouter()
 
 	muxRouter.Methods("GET").Path("/status").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		io.WriteString(w, fmt.Sprintln("weave DNS", version))
-		io.WriteString(w, server.Status())
+		fmt.Fprintln(w, "weave DNS", version)
+		fmt.Fprintln(w, server.Status())
 	})
 
 	muxRouter.Methods("PUT").Path("/name/{id:.+}/{ip:.+}").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

weavedns/main.go

@@ -7,7 +7,6 @@ import (
 	"github.com/weaveworks/weave/common/updater"
 	weavedns "github.com/weaveworks/weave/nameserver"
 	weavenet "github.com/weaveworks/weave/net"
-	"io"
 	"net"
 	"os"
 	"os/signal"
@@ -49,7 +48,7 @@ func main() {
 	flag.Parse()
 
 	if justVersion {
-		io.WriteString(os.Stdout, fmt.Sprintf("weave DNS %s\n", version))
+		fmt.Printf("weave DNS %s\n", version)
 		os.Exit(0)
 	}
 

weaver/main.go

@@ -9,7 +9,6 @@ import (
 	"github.com/gorilla/mux"
 	weavenet "github.com/weaveworks/weave/net"
 	weave "github.com/weaveworks/weave/router"
-	"io"
 	"log"
 	"net"
 	"net/http"
@@ -168,9 +167,9 @@ func handleHTTP(router *weave.Router, httpAddr string) {
 	muxRouter := mux.NewRouter()
 
 	muxRouter.Methods("GET").Path("/status").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		io.WriteString(w, fmt.Sprintln("weave router", version))
-		io.WriteString(w, fmt.Sprintln("Encryption", encryption))
-		io.WriteString(w, router.Status())
+		fmt.Fprintln(w, "weave router", version)
+		fmt.Fprintln(w, "Encryption", encryption)
+		fmt.Fprintln(w, router.Status())
 	})
 
 	muxRouter.Methods("GET").Path("/status-json").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {