* Make command test matching code accept generic regexes
And add generic conversions to regexes.
* Document test command structs
* Support matching multiple regexes internally in the test command
* Make it easier to call the generic regex methods
* Add a missing API usage comment
* Fix a potential hang in test child error reports
* Revert Option<Child> process handling
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
teor