py3: use string for "close" value in commit extras
The extras dict on commits has string keys and values. Before this
commit, we passed "close" as an integer, which Python 2 gladly
coerced to a string during a %s formatting in the bowels of
changelog.py.
Differential Revision: https://phab.mercurial-scm.org/D2157
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.