…s a gem.
The exception_hook is called with the user & hostname passed to it -- thats useful when working with a Rye::Set. 'cmd_clean' isn't exposed in the create_channel method, so this is the simplest way I could think to bring some uniformity to the callbacks.
… lost as the Net::SSH::Buffer read does not always read from the beginning of the channel buffer. This sets the position of the buffer to the beginning to be read from...