set PEAR as default standard

src/languages/php.coffee

@@ -63,7 +63,7 @@ module.exports = {
     standard:
       title: "PHPCBF Standard"
       type: 'string'
-      default: "",
+      default: "PEAR",
       description: "Standard name Squiz, PSR2, PSR1, PHPCS, PEAR, Zend, MySource... or path to CS rules. Will use local `phpcs.xml`, `phpcs.xml.dist`, `phpcs.ruleset.xml` or `ruleset.xml` if found in the project root."
 
 }