tests: add `hg log -G` output when there are merge conflicts
The next commit will change the behavior for these. I've used slightly
different commands in the different tests to match the surrounding
style.
Differential Revision: https://phab.mercurial-scm.org/D8042
Mercurial
=========
Mercurial is a fast, easy to use, distributed revision control tool
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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
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