tests: add helper script for processing doctests read from stdin Writes stdin to a temp file and doctests it. In the future we might want to spare the temp file and directly call into doctest. Also, with some tweaking it seems possible to adjust the line numbers reported in an error report so they match the ones in the original file.

subrepo: fix git branch tracking logic (issue2920)

alias: don't shadow commands that we only partially matched (issue2993) (BC) Previously, if you set an alias for "ci", it'd also shadow "commit" even though you didn't specify that. This occurred for all commands with explicit short variations.

resolve: update documentation to mention the .orig backup

cmdutil.bailifchanged: abort for dirty subrepos

largefiles: improve help Extension help taken from the URL formerly in the text (https://developers.kilnhg.com/Repo/Kiln/largefiles/largefiles/File/usage.txt) and improved.