extensions: fix up many many debug logs that use %r
This gets us a bunch closer on Python 3, but I'll still have to use a
ton of sad globs. A previous version of this patch tried to preserve
the %r formatting, but upon review Yuya noted that special characters
in extension names is very unlikely, so we can just use %s and not
sweat the quoting.
Differential Revision: https://phab.mercurial-scm.org/D5002
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.