MAGETWO-65199: [GitHub][PR] [PSR-2 Compliance] Fix #8612: Hundreds of…

… PHPCS-based static tests violations in mainline #8685

 - automatic fix of code style issues:
    - Step 1. Install phpcs globally: composer global require squizlabs/php_codesniffer:2.8.0
    - Step 1. Execute tool to fix PSR-2 violations in PHP files: ~/.composer/vendor/squizlabs/php_codesniffer/scripts/phpcbf --standard=PSR2 --extensions=php --ignore=generated/*,vendor/*,var/* .

Model/Client/ClientInterface.php

@@ -9,7 +9,7 @@ interface ClientInterface
 {
     /**
      * Validate connection params for search engine
-     * 
+     *
      * @return bool
      */
     public function testConnection();