add run_command proxy for test_dzil
autochanges
prioritize coverage/5.21 test
Document new command
v1.004000

 [Dependencies::Stats]
 - Dependencies changed since 1.003003, see misc/*.deps* for details
 - develop: +3 ↑1 (suggests: ↑1)
 - runtime: +1
 - test: +1

 [Features]
 - dztest now has ->run_command() proxy for DZ:App::Tester::test_dzil
post-release cleanup