dirstate: clarify a `hg update` invocation in a test It is common for readers of that test to confuse the `hg co` call with a `hg commit`, while it actually means `hg checkout`, an alias for the more common `hg update. So let us use the clearer version. Differential Revision: https://phab.mercurial-scm.org/D11777

test: mark rhg output as flaky rhg is not updating the dirstate on status yet, which make this part of the test flaky. This will be fixed soon. Differential Revision: https://phab.mercurial-scm.org/D11833