Merge pull request googleapis#346 from tagged/fix-unit-tests

Fix reference to Google_IO_Abstract (wrong case)

Author: ianbarber

src/Google/Client.php

@@ -195,9 +195,9 @@ public function setAuth(Google_Auth_Abstract $auth)
 
   /**
    * Set the IO object
-   * @param Google_Io_Abstract $auth
+   * @param Google_IO_Abstract $auth
    */
-  public function setIo(Google_Io_Abstract $io)
+  public function setIo(Google_IO_Abstract $io)
   {
     $this->config->setIoClass(get_class($io));
     $this->io = $io;