import: read X-Mercurial-Node email header to determine nodeid
This would be useful to import and obsolete patches sent using 'hg email
--plain', using evolve's --obsolete option of 'hg import'.
If email body contains Mercurial patch header ('# HG changeset patch'
block), nodeid parsed from X-Mercurial-Node header will still be
overridden by respective value found in body.
Mercurial
=========
Mercurial is a fast, easy to use, distributed revision control tool
for software developers.
Basic install::
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
Running without installing::
$ make local # build for inplace usage
$ ./hg --version # should show the latest version
See https://mercurial-scm.org/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.