Change from backticks to simple quotes to support older versions of node (#16)

Author: danguilherme

package-lock.json

@@ -4,7 +4,7 @@
  */
 const fs = require('fs');
 const commonCliConfig = '__COMMON_CLI_CONFIG_PATH__';
-const pugRules = `__PUG_RULES__`;
+const pugRules = '__PUG_RULES__';
 
 fs.readFile(commonCliConfig, (err, data) => {
   if (err) throw err;

src/files/ng-add-pug-loader.js

@@ -141,12 +141,12 @@ function getPugLoaderRules(): string {
       test: /\\.(pug|jade)$/,
       exclude: ${partialRegex},
       use: [
-        { loader: 'apply-loader' },
-        { loader: 'pug-loader' }
+        { loader: "apply-loader" },
+        { loader: "pug-loader" }
       ]
     },
     {
       test: ${partialRegex},
-      loader: 'pug-loader'
+      loader: "pug-loader"
     },`.replace(/\s+/gm, ' ');
 }