There is no 'success' logging for scp and ssh tasks

Currently the only logging we get about SCP tasks is this:

21-Feb-2013 21:36:35	Starting task 'send dist' of type 'com.atlassian.bamboo.plugins.bamboo-scp-plugin:scptask'
21-Feb-2013 21:36:37	Finished task 'send dist'

Which doesn't have any indication of whether the file it was meant to send was actually there, or if there any other errors or warnings. It makes debugging SCP tasks that aren't working properly exceedingly difficult.