related to https://github.com/delano/rye/issues/21. Stderror output (during Rye:Set operations) are being 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...
Merge pull request #32 from megeek/stderr_channel_fix

Stderr channel from Net:SSH:Buffer not being read from correctly.  Error messages from Rye::Set commands are lost.