Update apps/files_external/lib/sftp.php

Updated to using local 3rdparty + added a few missed braces.

apps/files_external/lib/sftp.php

@@ -6,7 +6,7 @@
  * See the COPYING-README file.
  */
 
-set_include_path(get_include_path() . PATH_SEPARATOR . OC::$THIRDPARTYROOT . '/3rdparty/phpseclib/phpseclib');
+set_include_path(get_include_path() . PATH_SEPARATOR . OC_App::getAppPath('files_external') . '/3rdparty/phpseclib/phpseclib');
 require('Net/SFTP.php');
 
 class OC_Filestorage_SFTP extends OC_Filestorage_Common {
@@ -122,6 +122,7 @@ class OC_Filestorage_SFTP extends OC_Filestorage_Common {
 		} catch (Exception $e) {
 			return false;
 		}
+	}
 
 	public function opendir($path) {
 		try {
@@ -256,6 +257,7 @@ class OC_Filestorage_SFTP extends OC_Filestorage_Common {
 		} catch (Exception $e) {
 			return false;
 		}
+	}
 
 	public function stat($path) {
 		try {