config: graduate experimental.updatecheck to commands.update.check
.. feature::
New `commands.update.check` feature to adjust constraints on when
`hg update` will allow updates with a dirty working copy.
also
.. bc::
The `experimental.updatecheck` name for the new `commands.update.check`
feature is now deprecated, and will be removed after this release.
Differential Revision: https://phab.mercurial-scm.org/D1070
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https://www.mercurial-scm.org/wiki/ContributingChanges
If you just want a checklist to follow, you can go straight to
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commits you've made (for example, `python contrib/check-commit
273ce12ad8f1` will report some style violations on a very old commit).