debian: add wish to suggests Debian maintainers already have this and lintian warns us about not listing 'wish' as a dependency or suggestion so this patch does indeed just that. The issue, by the way, is that we are shipping hgk (which is written in tcl/tk) so we should be good citizens and list wish (a meta package for tcl/tk) as a dependency.

hg-ssh: copy doc string to man page This corrects a warning from lintian that we're shipping an executable without a man page. Since there is a doc string in the text, let's use that for the man page.

progress: stop excessive clearing (issue4801) The progress bar was being cleared on every write(), regardless of whether it was currently displayed. This could foul up the display of any writes that didn't include a linebreak. In particular, the win32 mode of the color extension was turning single prompt string writes into two writes, and the resulting clear/write/clear/write pattern was making the prompt invisible. We fix this by insisting that we have shown a progress bar and haven't just cleared it (setting lastprint to 0). Conveniently, the test suite already had instances of duplicate clears.. that are now cleared up.

chgserver: remove _clearenvaliases Since we expand environment variables in alias lazily, the _clearenvaliases hack is no longer necessary. This resolves an issue that a non-shell alias which has environment variables in its arguments and is set to use pager will not use pager running with chg.

dispatch: defer environment variable resolution in alias commands (BC) Before this patch, if there are environment variables in an alias command, they will be expanded immediately when we first see the alias. This will cause issues with chg, because environment variable updates will not propagate to expanded arguments. This patch makes "args" of "cmdalias" a property that will be calculated every time when accessed.

rollback: add a config knob for entirely disabling the command This is of pretty high value for organizations that used to use p4 (as an example), since `p4 rollback` is what we call `hg backout`.