Respect locale environment variables on darwin.
In python 2.4+ on darwin, locale.getpreferredencoding() returns
mac-roman regardless of what LC_CTYPE, LANG etc are set to. This can
produce hard-to-notice conversion errors if input text is not in
mac-roman. So this patch overrides it with setlocale/getlocale if the
environment has been customized, on the assumption that the user has
done so deliberately.
changeset = '{rev}{tags}{parents} {node|short} {date|isodate} {author|user}\n {desc|firstline|strip}\n\n'
changeset_quiet = '{rev}:{node|short}\n'
start_tags = '['
tag = '{tag},'
last_tag = '{tag}]'
start_parents = ':'
parent = '{rev},'
last_parent = '{rev}'