hgrc: disable hg-git and hgsubversion It hasn't been common for me to use either of these extensions for some time, so just drop both of them from the main hgrc. Instead I'll enable them as-needed in individual repositories.

#!/bin/sh
if [ "`uname`" = "Darwin" ] ; then
    open -a emacs "$@"
else
    emacs -nw "$@"
fi