diff --git a/common.go b/common.go
index f953008..887ac54 100644
--- a/common.go
+++ b/common.go
@@ -10,7 +10,6 @@ import (
 	"bufio"
 	"os"
 	"strings"
-
 )
 
 // Read contents from file and split by new line.
@@ -33,8 +32,7 @@ func ReadLines(filename string) ([]string, error) {
 	return ret, err
 }
 
-
-func byteToString(orig []byte) string{
+func byteToString(orig []byte) string {
 	n := -1
 	for i, b := range orig {
 		if b == 0 {
@@ -42,9 +40,9 @@ func byteToString(orig []byte) string{
 		}
 		n = i + 1
 	}
-	if n == -1{
+	if n == -1 {
 		return string(orig)
-	}else{
+	} else {
 		return string(orig[:n])
 	}
 
diff --git a/cpu_freebsd.go b/cpu_freebsd.go
index 8318b43..674e747 100644
--- a/cpu_freebsd.go
+++ b/cpu_freebsd.go
@@ -9,6 +9,5 @@ import (
 func Cpu_times() ([]CPU_TimesStat, error) {
 	ret := make([]CPU_TimesStat, 0)
 
-	fmt.Println("FreeBSD")
 	return ret, nil
 }
diff --git a/host_linux.go b/host_linux.go
index 6f71945..5a9a488 100644
--- a/host_linux.go
+++ b/host_linux.go
@@ -3,8 +3,8 @@
 package gopsutil
 
 import (
-	"encoding/binary"
 	"bytes"
+	"encoding/binary"
 	"io/ioutil"
 	"os"
 	"syscall"
@@ -75,17 +75,17 @@ func Users() ([]UserStat, error) {
 	for i := 0; i < count; i++ {
 		b := buf[i*entrySize : i*entrySize+entrySize]
 
-        var u utmp
-        br := bytes.NewReader(b)
-        err := binary.Read(br, binary.LittleEndian, &u)
+		var u utmp
+		br := bytes.NewReader(b)
+		err := binary.Read(br, binary.LittleEndian, &u)
 		if err != nil {
 			continue
 		}
 		user := UserStat{
-			User: byteToString(u.Ut_user[:]),
+			User:     byteToString(u.Ut_user[:]),
 			Terminal: byteToString(u.Ut_line[:]),
-			Host: byteToString(u.Ut_host[:]),
-			Started: int(u.Ut_tv.Tv_sec),
+			Host:     byteToString(u.Ut_host[:]),
+			Started:  int(u.Ut_tv.Tv_sec),
 		}
 		ret = append(ret, user)
 	}
diff --git a/host_test.go b/host_test.go
index d4906a6..9d1476d 100644
--- a/host_test.go
+++ b/host_test.go
@@ -24,14 +24,13 @@ func TestBoot_time(t *testing.T) {
 	}
 }
 
-
 func TestUsers(t *testing.T) {
 	v, err := Users()
 	if err != nil {
 		t.Errorf("error %v", err)
 	}
-	for _, u := range v  {
-		if u.User == ""{
+	for _, u := range v {
+		if u.User == "" {
 			t.Errorf("Could not Users %v", v)
 		}
 	}