Some ideas to help bug reporting (1-4 may also help for feature requests):
1. What darcs version are you using? (Try: darcs --exact-version)
darcs 2.5.2 (release)
2. What operating system are you running?
OS X 10.6.8
3. What were you doing? (eg. what darcs commands)
darcs record --edit-long-comment
4. What behaviour were you expecting?
I expected trailing newlines in the long patch comment to be removed when
recording or amending a patch.
5. What went wrong?
The trailing newlines were retained as part of the long comment.
This also surprised juhp on IRC. See http://irclog.perlgeek.de/darcs/2012-