Update Dell plugin to work with S5212F-ON devices

Author: laura.panzariello

networkapi/plugins/Dell/FTOS/BGP/Cli.py

@@ -63,6 +63,7 @@ class Generic(BasePlugin):
 
     admin_privileges = 15
     VALID_TFTP_PUT_MESSAGE = 'bytes successfully copied'
+    VALID_TFTP_PUT_MESSAGE_OS10 = 'Copy succeeded'
 
     def _deploy_pre_req(self, neighbor):
         log.debug("_deploy_pre_req")
@@ -522,5 +523,14 @@ def _wait_string(self, wait_str_ok_regex='', wait_str_invalid_regex=None,
                         log.debug('Switch copied 0 bytes, need to try again.')
                         raise plugin_exc.CurrentlyBusyErrorException()
                     string_ok = 1
+                elif re.search(self.VALID_TFTP_PUT_MESSAGE_OS10, output_line):
+
+                    log.debug('Equipment output: %s' % output_line)
+
+                    # test bug switch copying 0 bytes
+                    if output_line == 'Copy failed':
+                        log.debug('Switch copied 0 bytes, need to try again.')
+                        raise plugin_exc.CurrentlyBusyErrorException()
+                    string_ok = 1
 
         return recv_string