Fix encoding issues with Ruby 2.0 (#87).

[voxik]

No description provided.

[deemytch]

the code:

remote = Net::SSH.start 'site.com', 'remoteuser'
remote.exec 'echo "выполняю задачу" ;' 

causes

incompatible character encodings: ASCII-8BIT and UTF-8
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/buffer.rb:284:in `block in write'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/buffer.rb:284:in `each'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/buffer.rb:284:in `write'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/buffer.rb:322:in `block in write_string'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/buffer.rb:319:in `each'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/buffer.rb:319:in `write_string'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/buffer.rb:55:in `block in from'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/buffer.rb:47:in `step'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/buffer.rb:47:in `from'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/channel.rb:470:in `send_channel_request'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/channel.rb:159:in `exec'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/session.rb:324:in `block in exec'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/channel.rb:513:in `call'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/channel.rb:513:in `do_open_confirmation'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/session.rb:539:in `channel_open_confirmation'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/session.rb:459:in `dispatch_incoming_packets'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/session.rb:216:in `preprocess'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/session.rb:200:in `process'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/session.rb:164:in `block in loop'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/session.rb:164:in `loop'
~/.gem/ruby/2.0.0/gems/net-ssh-2.6.7/lib/net/ssh/connection/session.rb:164:in `loop'
/workpath/rakefile:80:in `block (2 levels) in '
~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/task.rb:246:in `call'
~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/task.rb:246:in `block in execute'

~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/task.rb:241:in each' ~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/task.rb:241:inexecute'
~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/task.rb:184:in block in invoke_with_call_chain' ~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/task.rb:177:ininvoke_with_call_chain'
~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/task.rb:170:in invoke' ~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/application.rb:143:ininvoke_task'
~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/application.rb:101:in block (2 levels) in top_level' ~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/application.rb:101:ineach'
~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/application.rb:101:in block in top_level' ~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/application.rb:110:inrun_with_threads'
~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/application.rb:95:in top_level' ~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/application.rb:73:inblock in run'
~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/application.rb:160:in standard_exception_handling' ~/.gem/ruby/2.0.0/gems/rake-10.0.4/lib/rake/application.rb:70:inrun'

[delano]

@voxik Thanks for the fix.

@deemytch That looks like a separate issue. This is just related to the output while running tests. Feel free to open another issue.