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.

#!/bin/sh
#
# test for issue351

# Environement setup for MQ
echo "[extensions]" >> $HGRCPATH
echo "mq=" >> $HGRCPATH

#Repo init
hg init
hg qinit

echo b > b
hg ci -A -m foo
echo cc > b
hg qnew -f foo.diff
echo b > b
hg qrefresh
hg debugindex .hg/store/data/b.i