Add short description explaining how SFTP ext storage class works.

diff --git a/apps/files_external/lib/sftp.php b/apps/files_external/lib/sftp.php
index 804f418a455221dd3216f1488ea04ac628ba50c9..fc74d5b2a90ebadd1934f266b7edeb9790c66d67 100644 (file)
--- a/apps/files_external/lib/sftp.php
+++ b/apps/files_external/lib/sftp.php
@@ -7,6 +7,10 @@
  */
 namespace OC\Files\Storage;
 
+/**
+* Uses phpseclib's Net_SFTP class and the Net_SFTP_Stream stream wrapper to
+* provide access to SFTP servers.
+*/
 class SFTP extends \OC\Files\Storage\Common {
        private $host;
        private $user;