Update rename documentation, fix coding standard errors

Author: tanlisu

docs/reference/method/MongoDBCollection-rename.txt

@@ -63,11 +63,7 @@ The output would then resemble::
 
    object(MongoDB\Model\BSONDocument)#9 (1) {
      ["storage":"ArrayObject":private]=>
-     array(3) {
-       ["ns"]=>
-       string(16) "test.restaurants"
-       ["nIndexesWas"]=>
-       int(3)
+     array(1) {
        ["ok"]=>
        float(1)
      }

docs/reference/method/MongoDBDatabase-renameCollection.txt

@@ -62,11 +62,7 @@ The output would then resemble::
 
    object(MongoDB\Model\BSONDocument)#8 (1) {
      ["storage":"ArrayObject":private]=>
-     array(3) {
-       ["ns"]=>
-       string(10) "test.restaurants"
-       ["nIndexesWas"]=>
-       int(1)
+     array(1) {
        ["ok"]=>
        float(1)
      }

src/Collection.php

@@ -1010,7 +1010,7 @@ public function mapReduce(JavascriptInterface $map, JavascriptInterface $reduce,
      *
      * @see RenameCollection::__construct() for supported options
      * @param string $toNamespace New namespace of the collection
-     * @param array  $options         Additional options
+     * @param array  $options     Additional options
      * @return array|object Command result document
      * @throws UnsupportedException if options are not supported by the selected server
      * @throws InvalidArgumentException for parameter/option parsing errors

src/Database.php

@@ -476,8 +476,8 @@ public function modifyCollection($collectionName, array $collectionOptions, arra
      *
      * @see RenameCollection::__construct() for supported options
      * @param string $fromNamespace Namespace of the collection to rename
-     * @param string $toNamespace New namespace of the collection
-     * @param array  $options         Additional options
+     * @param string $toNamespace   New namespace of the collection
+     * @param array  $options       Additional options
      * @return array|object Command result document
      * @throws UnsupportedException if options are unsupported on the selected server
      * @throws InvalidArgumentException for parameter/option parsing errors

src/Operation/RenameCollection.php

@@ -78,8 +78,8 @@ class RenameCollection implements Executable
      *    exception at execution time if used.
      *
      * @param string $fromNamespace Namespace of the collection to rename
-     * @param string $toNamespace New namespace of the collection
-     * @param array  $options         Command options
+     * @param string $toNamespace   New namespace of the collection
+     * @param array  $options       Command options
      * @throws InvalidArgumentException for parameter/option parsing errors
      */
     public function __construct($fromNamespace, $toNamespace, array $options = [])