formatter: put topic in templatespec tuple
This will allow us to change the initial template reference depending on how
the template is looked up. For example,
-Tdefault => (ref='changeset', tmpl=None, mapfile='map-cmdline.default')
-T'{rev}' => (ref='', tmpl='{rev}', mapfile=None)
A literal template given by -T option will be stored as an unnamed template,
which will free up the template namespace so that we can load named templates
from [templates] section of user config.
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.