Fix ESLint header/header error

src/common/JsonFileManager.js

@@ -1,3 +1,6 @@
+// Copyright (c) 2015-2016 Yuya Ochiai
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
 import fs from 'fs';
 
 export default class JsonFileManager {

src/common/config/buildConfig.js

@@ -1,3 +1,7 @@
+// Copyright (c) 2015-2016 Yuya Ochiai
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
 // For detailed guides, please refer to https://docs.mattermost.com/deployment/desktop-app-deployment.html
 
 /**

src/common/config/defaultPreferences.js

@@ -1,3 +1,7 @@
+// Copyright (c) 2015-2016 Yuya Ochiai
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
 /**
  * Default user preferences. End-users can change these parameters by editing config.json
  * @param {number} version - Scheme version. (Not application version)

src/common/config/pastDefaultPreferences.js

@@ -1,3 +1,6 @@
+// Copyright (c) 2015-2016 Yuya Ochiai
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
 import defaultPreferences from './defaultPreferences';
 
 const pastDefaultPreferences = {

src/common/config/upgradePreferences.js

@@ -1,3 +1,6 @@
+// Copyright (c) 2015-2016 Yuya Ochiai
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
 import pastDefaultPreferences from './pastDefaultPreferences';
 
 function deepCopy(object) {

src/common/deepmerge.js

@@ -1,3 +1,6 @@
+// Copyright (c) 2015-2016 Yuya Ochiai
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
 import deepmerge from 'deepmerge';
 
 export default function deepMergeProxy(x, y, options) {

src/common/osVersion.js

@@ -1,3 +1,6 @@
+// Copyright (c) 2015-2016 Yuya Ochiai
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
 'use strict';
 
 import os from 'os';

src/common/settings.js

@@ -1,3 +1,6 @@
+// Copyright (c) 2015-2016 Yuya Ochiai
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
 'use strict';
 
 import fs from 'fs';