wireproto: use command executor for unbundle
This also required unifying the name of the argument because the
new API always passes arguments by keyword. I decided to change
implementations to "bundle" instead of the interface to "cg"
because "bundle" is more appropriate in a modern world.
Differential Revision: https://phab.mercurial-scm.org/D3314
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.