diff --git a/binding/binding_test.go b/binding/binding_test.go
index b2fac15f..16ca2027 100644
--- a/binding/binding_test.go
+++ b/binding/binding_test.go
@@ -61,6 +61,10 @@ type FooStructForMapType struct {
 	MapFoo map[string]interface{} `form:"map_foo"`
 }
 
+type FooStructForIgnoreFormTag struct {
+	Foo *string `form:"-"`
+}
+
 type InvalidNameType struct {
 	TestName string `invalid_name:"test_name"`
 }
@@ -278,6 +282,12 @@ func TestBindingFormForTime2(t *testing.T) {
 		"", "")
 }
 
+func TestFormBindingIgnoreField(t *testing.T) {
+	testFormBindingIgnoreField(t, "POST",
+		"/", "/",
+		"-=bar", "")
+}
+
 func TestBindingFormInvalidName(t *testing.T) {
 	testFormBindingInvalidName(t, "POST",
 		"/", "/",
@@ -915,6 +925,21 @@ func testFormBindingForTimeFailLocation(t *testing.T, method, path, badPath, bod
 	assert.Error(t, err)
 }
 
+func testFormBindingIgnoreField(t *testing.T, method, path, badPath, body, badBody string) {
+	b := Form
+	assert.Equal(t, "form", b.Name())
+
+	obj := FooStructForIgnoreFormTag{}
+	req := requestWithBody(method, path, body)
+	if method == "POST" {
+		req.Header.Add("Content-Type", MIMEPOSTForm)
+	}
+	err := b.Bind(req, &obj)
+	assert.NoError(t, err)
+
+	assert.Nil(t, obj.Foo)
+}
+
 func testFormBindingInvalidName(t *testing.T, method, path, badPath, body, badBody string) {
 	b := Form
 	assert.Equal(t, "form", b.Name())
@@ -1349,31 +1374,6 @@ func TestCanSet(t *testing.T) {
 	assert.Nil(t, mapForm(&c, nil))
 }
 
-type FooStructForIgnoreFormTag struct {
-	Foo *string `form:"-"`
-}
-
-func TestFormBindingIgnoreField(t *testing.T) {
-	testFormBindingIgnoreField(t, "POST",
-		"/", "/",
-		"Foo=bar", "")
-}
-
-func testFormBindingIgnoreField(t *testing.T, method, path, badPath, body, badBody string) {
-	b := Form
-	assert.Equal(t, "form", b.Name())
-
-	obj := FooStructForIgnoreFormTag{}
-	req := requestWithBody(method, path, body)
-	if method == "POST" {
-		req.Header.Add("Content-Type", MIMEPOSTForm)
-	}
-	err := b.Bind(req, &obj)
-	assert.NoError(t, err)
-
-	assert.Nil(t, obj.Foo)
-}
-
 func formPostRequest(path, body string) *http.Request {
 	req := requestWithBody("POST", path, body)
 	req.Header.Add("Content-Type", MIMEPOSTForm)
diff --git a/gin.go b/gin.go
index 6e5ea6d7..ad64c35f 100644
--- a/gin.go
+++ b/gin.go
@@ -318,6 +318,7 @@ func (engine *Engine) RunUnix(file string) (err error) {
 		return
 	}
 	defer listener.Close()
+	os.Chmod(file, 0777)
 	err = http.Serve(listener, engine)
 	return
 }
diff --git a/logger.go b/logger.go
index 6d8f838e..bd28a11c 100644
--- a/logger.go
+++ b/logger.go
@@ -64,6 +64,8 @@ type LogFormatterParams struct {
 	ErrorMessage string
 	// IsTerm shows whether does gin's output descriptor refers to a terminal.
 	IsTerm bool
+	// BodySize is the size of the Response Body
+	BodySize int
 }
 
 // defaultLogFormatter is the default log format function Logger middleware uses.
@@ -191,6 +193,8 @@ func LoggerWithConfig(conf LoggerConfig) HandlerFunc {
 			param.StatusCode = c.Writer.Status()
 			param.ErrorMessage = c.Errors.ByType(ErrorTypePrivate).String()
 
+			param.BodySize = c.Writer.Size()
+
 			if raw != "" {
 				path = path + "?" + raw
 			}
diff --git a/mode.go b/mode.go
index f787b5ca..8aa84aa8 100644
--- a/mode.go
+++ b/mode.go
@@ -11,8 +11,8 @@ import (
 	"github.com/gin-gonic/gin/binding"
 )
 
-// ENV_GIN_MODE indicates environment name for gin mode.
-const ENV_GIN_MODE = "GIN_MODE"
+// EnvGinMode indicates environment name for gin mode.
+const EnvGinMode = "GIN_MODE"
 
 const (
 	// DebugMode indicates gin mode is debug.
@@ -44,7 +44,7 @@ var ginMode = debugCode
 var modeName = DebugMode
 
 func init() {
-	mode := os.Getenv(ENV_GIN_MODE)
+	mode := os.Getenv(EnvGinMode)
 	SetMode(mode)
 }
 
diff --git a/mode_test.go b/mode_test.go
index cf27acd8..3dba5150 100644
--- a/mode_test.go
+++ b/mode_test.go
@@ -13,13 +13,13 @@ import (
 )
 
 func init() {
-	os.Setenv(ENV_GIN_MODE, TestMode)
+	os.Setenv(EnvGinMode, TestMode)
 }
 
 func TestSetMode(t *testing.T) {
 	assert.Equal(t, testCode, ginMode)
 	assert.Equal(t, TestMode, Mode())
-	os.Unsetenv(ENV_GIN_MODE)
+	os.Unsetenv(EnvGinMode)
 
 	SetMode("")
 	assert.Equal(t, debugCode, ginMode)