setup.py: Add 'mercurial' as include dir for the inotify compiler.
This patch adds access to util.h for the inotify C module by adding the
"mercurial" directory as an include dir, enabling access to the macros defined
in util.h.
#!/usr/bin/env python
#
# Copyright 2009 Matt Mackall <mpm@selenic.com> and others
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""prints repr(sys.stdin) but preserves newlines in input"""
import sys
print repr(sys.stdin.read())[1:-1].replace('\\n', '\n'),