Use apostrophe instead of double quotes

Author: luthfianto

lib/watcher.js

@@ -1,6 +1,6 @@
 'use strict';
-const chalk = require('chalk');
 const nodePath = require('path');
+const chalk = require('chalk');
 const debug = require('debug')('ava:watcher');
 const diff = require('lodash.difference');
 const chokidar = require('chokidar');
@@ -19,8 +19,7 @@ function rethrowAsync(err) {
 
 const MIN_DEBOUNCE_DELAY = 10;
 const INITIAL_DEBOUNCE_DELAY = 100;
-const rerunMessage = chalk.gray.dim("To rerun all tests, type 'r', followed by Enter\nTo update snapshots used in the previous tests, type 'u', followed by Enter\n");
-
+const rerunMessage = chalk.gray.dim(`To rerun all tests, type 'r', followed by Enter\nTo update snapshots used in the previous tests, type 'u', followed by Enter\n`);
 
 class Debouncer {
 	constructor(watcher) {