cowboyd/jenkins-plugin — comment on commit 7f52d6cdb5fde941f60a032c530c87d9e908f2a5
File:  line 0
By jorgenpt:

Weirdly named method, but from the docs "Raises an HTTP error if the response is not 2xx (success)."
http://www.ruby-doc.org/stdlib-1.9.3/libdoc/net/http/rdoc/Net/HTTPResponse.html#method-i-value

Not sure what happens on redirects - are they followed?