commands: be more uniform in an "hg update" error message "can only specify one of -C/--clean, -c/--check, or -m/merge" becomes "can only specify one of -C/--clean, -c/--check, or -m/--merge"

update: mention long options explicitly in description of merge.update() The short options "-c" and "-C" may be confusing for a novice reading the documentation. Let's try to be more explicit, also mentioning the equivalent long options ("--check" and "--clean") in the comments.

mq: copy pager attributes back to qrepo.ui If the legacy pager extension is enabled, a pager is started through repo.ui at dispatch._runcommand(). After that, mqcommand() creates a qrepo with a fresh repo.baseui, at which point pager information was lost and another pager would be spawned by the modern pager interface. This is a minimal workaround for the problem.

registrar: host "dynamicdefault" constant by configitem object This is the common pattern seen in the other registrar classes.

configitems: register 'ui.editor'

help: fix typo in hg merge documentation

Added signature for changeset 1e2454b60e59

Added tag 4.4-rc for changeset 1e2454b60e59