Use only "marshal/unmarshal" with single "l" (#1069)

Because of spelling choices for Go https://github.com/golang/go/wiki/Spelling

Author: alexandear

bindform_test.go

@@ -159,9 +159,9 @@ func TestMarshalForm(t *testing.T) {
 	}
 
 	for k, v := range testCases {
-		marshalled, err := MarshalForm(v, nil)
+		marshaled, err := MarshalForm(v, nil)
 		assert.NoError(t, err)
-		encoded, err := url.QueryUnescape(marshalled.Encode())
+		encoded, err := url.QueryUnescape(marshaled.Encode())
 		assert.NoError(t, err)
 		assert.Equal(t, k, encoded)
 	}

bindparam.go

@@ -68,7 +68,7 @@ func BindStyledParameterWithLocation(style string, explode bool, paramName strin
 	// If the destination implements encoding.TextUnmarshaler we use it for binding
 	if tu, ok := dest.(encoding.TextUnmarshaler); ok {
 		if err := tu.UnmarshalText([]byte(value)); err != nil {
-			return fmt.Errorf("error unmarshalling '%s' text as %T: %s", value, dest, err)
+			return fmt.Errorf("error unmarshaling '%s' text as %T: %s", value, dest, err)
 		}
 
 		return nil
@@ -82,7 +82,7 @@ func BindStyledParameterWithLocation(style string, explode bool, paramName strin
 
 	if t.Kind() == reflect.Struct {
 		// We've got a destination object, we'll create a JSON representation
-		// of the input value, and let the json library deal with the unmarshalling
+		// of the input value, and let the json library deal with the unmarshaling
 		parts, err := splitStyledParameter(style, explode, true, paramName, value)
 		if err != nil {
 			return err
@@ -233,7 +233,7 @@ func bindSplitPartsToDestinationArray(parts []string, dest interface{}) error {
 // into the struct.
 func bindSplitPartsToDestinationStruct(paramName string, parts []string, explode bool, dest interface{}) error {
 	// We've got a destination object, we'll create a JSON representation
-	// of the input value, and let the json library deal with the unmarshalling
+	// of the input value, and let the json library deal with the unmarshaling
 	var fields []string
 	if explode {
 		fields = make([]string, len(parts))
@@ -462,7 +462,7 @@ func bindParamsToExplodedObject(paramName string, values url.Values, dest interf
 		return true, BindStringToObject(values.Get(paramName), dest)
 	}
 	if t.Kind() != reflect.Struct {
-		return false, fmt.Errorf("unmarshalling query arg '%s' into wrong type", paramName)
+		return false, fmt.Errorf("unmarshaling query arg '%s' into wrong type", paramName)
 	}
 
 	fieldsPresent := false

bindstring.go

@@ -100,7 +100,7 @@ func BindStringToObject(src string, dst interface{}) error {
 	case reflect.Array:
 		if tu, ok := dst.(encoding.TextUnmarshaler); ok {
 			if err := tu.UnmarshalText([]byte(src)); err != nil {
-				return fmt.Errorf("error unmarshalling '%s' text as %T: %s", src, dst, err)
+				return fmt.Errorf("error unmarshaling '%s' text as %T: %s", src, dst, err)
 			}
 
 			return nil