doc: remove a spurious ^L in some doc This was wrongly introduced in D11784. Differential Revision: https://phab.mercurial-scm.org/D11896

upgrade: drop some dead code Everything done by this block is now done by earlier code. So we don't need it anymore. Differential Revision: https://phab.mercurial-scm.org/D11872

upgrade: only process revlogs that needs it by default We have more and more requirement that does not affect revlog or that only affect some of them. It is silly to force a full processing of all revlog to juste move the requirement around, or to simply rewrite the dirstate. So now, only the revlog that needs to be touched will be touched. Unless the --changelog & al flags are used. Differential Revision: https://phab.mercurial-scm.org/D11871

upgrade: issue a message when a revlog type has to be upgraded This is more explicite and prepare for a smoother transition to smarter picking of the revlog we will process. Differential Revision: https://phab.mercurial-scm.org/D11870

upgrade: explicitly warn when a `--no-xxx` flag is overwritten Some format upgrade/downgrades -needs- revlog to be recomputed. So we now detect that individually and warn when it contradict explicitly passed flag. This is part of a larger series to make `debugupgraderepo` smarter about which revlog it picks by default. Differential Revision: https://phab.mercurial-scm.org/D11869

upgrade: make the list of explicitly specified revlog a dict This makes various logic simpler and will help making future patch clearer. Differential Revision: https://phab.mercurial-scm.org/D11868