commandserver: implement name() to clarify channel is not a plain file Because unknown attributes are delegated to the underlying file object, commandserver channels said they were '<stdout>' or '<stdin>' even though they weren't. This patch makes them say '<X-channel>'.

histedit: delete to drop The default behaviour to forbid this makes a lot of sense for novice users because it's safeguarding them from dangerous behavior but making it configurable will be apprieciated by power users in at least one big organization. It allows an user to look an histedit rules from declarative perspective and make the rules reflect the state after histedit. If we can move lines t move commits why can't we drop lines to drop commits? Let's put this behind config knob and inform users about this feature the very moment they are trying to use it so they can choose desired behaviour.

clonebundles: fix bundlespec typo

record: fix hunk handling to remember the current function

record: turn on showfunc Always try to give diff context when doing an interactive record

parsers: use PyTuple_Pack instead of manual list-filling Suggested by Yuya.

tags: mention --quiet switch in help (issue4920)

merge with stable

histedit: omit useless message from update (edit) specifically: 0 files updated, 0 files merged, 0 files removed, 0 files unresolved

histedit: omit useless message from update (_histedit) specifically: 0 files updated, 0 files merged, 0 files removed, 0 files unresolved