go: Minor changes in the code to follow code conventions

Merge fixes to code formatting and naming as reported by gofmt and
golint from Gabriel.

see: !1

go/helloweb.go

@@ -4,74 +4,70 @@
 package main
 
 import (
-    "os"
-    "fmt"
-    "time"
-    "log"
-    "flag"
-    "strings"
-    "net"
-    "net/http"
+	"flag"
+	"fmt"
+	"log"
+	"net"
+	"net/http"
+	"os"
+	"strings"
+	"time"
 )
 
-
 func asctime() string {
-    return time.Now().Format(time.ANSIC)
+	return time.Now().Format(time.ANSIC)
 }
 
-
 // wrapper for http.Handler to log all requests
 func logit(handler http.Handler) http.Handler {
-    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-        log.Printf("%s %s %s", r.RemoteAddr, r.Method, r.URL)
-        handler.ServeHTTP(w, r)
-    })
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		log.Printf("%s %s %s", r.RemoteAddr, r.Method, r.URL)
+		handler.ServeHTTP(w, r)
+	})
 }
 
-
-
 var name string
 
 func webhello(w http.ResponseWriter, r *http.Request) {
-    fmt.Fprintf(w, "Hello %s at `%s`  ; %s  (go)", name,
-                    r.URL.Path, asctime())
+	fmt.Fprintf(w, "Hello %s at `%s`  ; %s  (go)", name,
+		r.URL.Path, asctime())
 }
 
 func main() {
-    logfile := flag.String("logfile", "", "log output to file instead of stderr")
-    flag.Usage = func() {
-        fmt.Println("Usage: helloweb.go [options] bind_ip bind_port ...")
-        flag.PrintDefaults()
-    }
-    flag.Parse()
-
-    if flag.NArg() < 2 {
-        flag.Usage()
-        os.Exit(1)
-    }
-
-    bind_ip    := flag.Arg(0)
-    bind_port  := flag.Arg(1)
-    bind_addr  := net.JoinHostPort(bind_ip, bind_port)
-
-    name = strings.Join(flag.Args()[2:], " ")
-    if name == "" {
-        name = "world"
-    }
-
-    // redirect log to file, if requested
-    if *logfile != "" {
-        f, err := os.OpenFile(*logfile, os.O_RDWR | os.O_CREATE | os.O_APPEND, 0644)
-        if err != nil {
-            panic(err)
-        }
-        defer f.Close()
-        log.SetOutput(f)
-    }
-
-    log.Printf("* %s helloweb.go starting at %s", asctime(), bind_addr)
-
-    http.HandleFunc("/", webhello)
-    log.Fatal(
-        http.ListenAndServe(bind_addr, logit(http.DefaultServeMux)))
+	logfile := flag.String("logfile", "", "log output to file instead of stderr")
+	flag.Usage = func() {
+		fmt.Println("Usage: helloweb.go [options] bindIP bindPort ...")
+		flag.PrintDefaults()
+	}
+	flag.Parse()
+
+	if flag.NArg() < 2 {
+		flag.Usage()
+		os.Exit(1)
+	}
+
+	bindIP := flag.Arg(0)
+	bindPort := flag.Arg(1)
+	bindAddr := net.JoinHostPort(bindIP, bindPort)
+
+	name = strings.Join(flag.Args()[2:], " ")
+	if name == "" {
+		name = "world"
+	}
+
+	// redirect log to file, if requested
+	if *logfile != "" {
+		f, err := os.OpenFile(*logfile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0644)
+		if err != nil {
+			panic(err)
+		}
+		defer f.Close()
+		log.SetOutput(f)
+	}
+
+	log.Printf("* %s helloweb.go starting at %s", asctime(), bindAddr)
+
+	http.HandleFunc("/", webhello)
+	log.Fatal(
+		http.ListenAndServe(bindAddr, logit(http.DefaultServeMux)))
 }