I've created a new public branch 'parallal-tests-maint', which is meant for small improvements (mostly in testing/documentation) to the Automake parallal-tests functionality. It is meant to be merged to maint eventually, but before doing that merge I'd like to have the new commits properly reviewed and scrutinized (that's whay I'm creating this branch instead of applying the commits directly to maint).
Patches will follow soonish. Regards, Stefano