Bug 823448

Description of problem:
use Ctrl+C to interrupt tail app logs, unexpected code error message will show up.

Version-Release number of selected component (if applicable):
rhc-0.93.3-1.el6_2.noarch

How reproducible:
always

Steps to Reproduce:
1.create app
rhc app create -a app1 -t perl-5.10
2.tail log via rhc-tail-files command
rhc-tail-files -a app1
3.use ctrl+c to stop the tail log, after the logs show
  
Actual results:
unexpected error code message will show in the terminal.

Expected results:
tail log should be stopped smoothly.

Additional info:
[root@localhost ~]# rhc-tail-files -a perl1
Password: ******

Attempting to tail files: perl1/logs/*
Use ctl + c to stop
==> perl1/logs/error_log-20120521-000000-EST <==
<----------------->
[Mon May 21 05:37:31 2012] [error] [client 127.3.27.1] File does not exist: /var/lib/stickshift/949e39dd423c4a398551fe56dc72c6de/perl1/repo/perl/apache-status

==> perl1/logs/access_log-20120521-000000-EST <==
<----------------->
127.0.0.1 - - [21/May/2012:05:37:21 -0400] "GET /apache-status?auto HTTP/1.0" 404 287 "-" "collectd/4.10.7"
127.0.0.1 - - [21/May/2012:05:37:31 -0400] "GET /apache-status?auto HTTP/1.0" 404 287 "-" "collectd/4.10.7"
^C/usr/lib/ruby/gems/1.8/gems/net-ssh-2.3.0/lib/net/ssh/ruby_compat.rb:36:in `select': Interrupt
	from /usr/lib/ruby/gems/1.8/gems/net-ssh-2.3.0/lib/net/ssh/ruby_compat.rb:36:in `io_select'
	from /usr/lib/ruby/gems/1.8/gems/net-ssh-2.3.0/lib/net/ssh/connection/session.rb:201:in `process'
	from /usr/lib/ruby/gems/1.8/gems/net-ssh-2.3.0/lib/net/ssh/connection/session.rb:161:in `loop'
	from /usr/lib/ruby/gems/1.8/gems/net-ssh-2.3.0/lib/net/ssh/connection/session.rb:161:in `loop_forever'
	from /usr/lib/ruby/gems/1.8/gems/net-ssh-2.3.0/lib/net/ssh/connection/session.rb:161:in `loop'
	from /usr/lib/ruby/gems/1.8/gems/rhc-0.93.3/lib/rhc-common.rb:1257:in `ssh_ruby'
	from /usr/lib/ruby/gems/1.8/gems/net-ssh-2.3.0/lib/net/ssh.rb:193:in `start'
	from /usr/lib/ruby/gems/1.8/gems/rhc-0.93.3/lib/rhc-common.rb:1245:in `ssh_ruby'
	from /usr/lib/ruby/gems/1.8/gems/rhc-0.93.3/bin/rhc-tail-files:112
	from /usr/bin/rhc-tail-files:19:in `load'
	from /usr/bin/rhc-tail-files:19