Lint internal scripts with eslint:recommended (#1729)

* Lint internal scripts with eslint:recommended

* Warnings r bad

packages/react-dev-utils/checkRequiredFiles.js

@@ -7,6 +7,8 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
+'use strict';
+
 var fs = require('fs');
 var path = require('path');
 var chalk = require('chalk');

packages/react-dev-utils/clearConsole.js

@@ -7,6 +7,8 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
+'use strict';
+
 function clearConsole() {
   process.stdout.write(process.platform === 'win32' ? '\x1Bc' : '\x1B[2J\x1B[3J\x1B[H');
 }

packages/react-dev-utils/formatWebpackMessages.js

@@ -7,6 +7,8 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
+'use strict';
+
 // WARNING: this code is untranspiled and is used in browser too.
 // Please make sure any changes are in ES5 or contribute a Babel compile step.
 

packages/react-dev-utils/getProcessForPort.js

@@ -1,3 +1,14 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+'use strict';
+
 var chalk = require('chalk');
 var execSync = require('child_process').execSync;
 var path = require('path');

packages/react-dev-utils/openBrowser.js

@@ -7,6 +7,8 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
+'use strict';
+
 var execSync = require('child_process').execSync;
 var opn = require('opn');
 

packages/react-dev-utils/prompt.js

@@ -7,6 +7,8 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
+'use strict';
+
 var rl = require('readline');
 
 // Convention: "no" should be the conservative choice.
@@ -37,6 +39,6 @@ function prompt(question, isYesDefault) {
       return resolve(isYes);
     });
   });
-};
+}
 
 module.exports = prompt;

packages/react-dev-utils/webpackHotDevClient.js

@@ -7,6 +7,8 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
+'use strict';
+
 // This alternative WebpackDevServer combines the functionality of:
 // https://github.com/webpack/webpack-dev-server/blob/webpack-1/client/index.js
 // https://github.com/webpack/webpack/blob/webpack-1/hot/dev-server.js
@@ -323,4 +325,4 @@ function tryApplyUpdates(onHotUpdateSuccess) {
       }
     );
   }
-};
+}