echo_bot: reply as plain if NOT encrypted

important detail. Got lost in translation between rewrites with the
Callback/CoroutineCallback

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

examples/echo_client.py

@@ -134,7 +134,7 @@ class EchoBot(ClientXMPP):
         if mtype not in ('chat', 'normal'):
             return None
 
-        if self['xep_0384'].is_encrypted(msg):  # Already handled by 'encrypted_handler'
+        if not self['xep_0384'].is_encrypted(msg):
             if self.debug_level == LEVEL_DEBUG:
                 await self.plain_reply(mto, mtype, 'Echo unencrypted message:%(body)s' % msg)
             return None