filectx: extract function to create parent fctx keeping ancestry info committablefilectx.parents() should use this to take advantage of the linkrev adjustment.

filectx: factor out creation of parent fctx This series tries to fix wrong ancestry information on annotating working directory. This change should slightly improves the readability of the next patch.

help: fix typo commited -> committed

largefiles: don't mangle filesets when fixing up the log matcher The fileset-generated.t test previously failed with this: + hg: parse error: unknown identifier: .hglf/modified + (did you mean 'modified'?) + [255] Filesets will find the standins on their own, without any help. While that's useful for some things like modified(), clean(), etc., it is wrong for things like size(). Proper fileset support for largefiles is not trivial, but this was failing with just the extension enabled on a normal repo.

largefiles: don't crash when cloning to a remote repo The immediate crash was when checking for requirements immediately after this, but lfcommands.downloadlfiles() will also crash if --all-largefiles is specified. That has been in place since atleast 5884812686f7 (2.3-rc) without anyone noticing. I can't tell from the peer classes if there's a way to make the custom largefile functionality work in this case, but atleast it doesn't crash.

run-tests: don't error when glob matched line ends with backslash As part of writing another test, I triggered an array index error in glob match processing code by having a (glob) line end in a single backslash (which is the escape character). Adding a simple bounds check prevents the error in run-tests.py.

histedit: change state format to allow non-hash lines The existing state serialization format assumed the rule line consisted of an action and a hash. In our external extension that adds 'exec' this is not the case (there is no hash, just the shell command). So let's change the format to be more generic with just an action and a remainder, and the various commands can handle it as they wish. Flagged for stable since we want to get this format tweak in before the new format goes live in the release.