convert/darcs: handle non-ASCII metadata in darcs changelog (issue2354) Given a commit author or message with non-ASCII characters in a darcs repo, convert would raise a UnicodeEncodeError when adding changesets to the hg changelog. This happened because etree returns back unicode objects for any text it can't encode into ASCII. convert was passing these objects to changelog.add(), which would then attempt encoding.fromlocal() on them. This patch ensures converter_source.recode() is called on each piece of commit data returned by etree. (Also note that darcs is currently encoding agnostic and will print out whatever is in a patch's metadata byte-for-byte, even in the XML changelog.)