Minor Description
When test-patch is run on a developer workspace which contains modifications, it errors out by saying "ERROR: can't run in a workspace that contains modifications". It appears this is printed when svn stat command returns a non-empty output. It would be helpful to report this output, so that developers can be alerted to what modifications are causing this error. Sometimes these modifications may not be because of a direct code change they've done, but remnants of an incorrect cleanup of the last build, etc.