view .arcconfig @ 42932:e4803231f538

amend: add option to update to the current user

This is also from the evolve extension's version of amend.  A side effect of
this refactoring is for uncommit to support `rewrite.update-timestamp`.

Differential Revision: https://phab.mercurial-scm.org/D6853

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    "repository.callsign": "HG",
    "arc.land.onto.default": "@",
    "base": "hg:.^"
}