Fixed CS issues

Author: ezimuel

tests/Elasticsearch/Tests/Connections/ConnectionTest.php

@@ -31,7 +31,8 @@ public function testConstructor()
         ];
 
         $connection = new Connection(
-            function(){},
+            function () {
+            },
             $host,
             $params,
             $this->serializer,
@@ -50,7 +51,8 @@ public function testGetHeadersContainUserAgent()
         ];
 
         $connection = new Connection(
-            function(){},
+            function () {
+            },
             $host,
             $params,
             $this->serializer,