Update thinmanager_traversal_download.rb

Author: h4x-x0r

modules/auxiliary/gather/thinmanager_traversal_download.rb

@@ -54,7 +54,7 @@ def check
       connect
     rescue Rex::ConnectionTimeout
       print_error("Connection to #{datastore['RHOSTS']}:#{datastore['RPORT']} failed.")
-      return CheckCode::Unreachable
+      return Exploit::CheckCode::Unknown
     end
 
     vprint_status('Sending handshake...')