[2.7] bpo-33873: Backport regrtest from master#7936

Merged

vstinner merged 3 commits into

vstinner:regrtest27

Jun 26, 2018

Commits on Jun 26, 2018

bpo-33718: regrtest: use format_duration() to display failed tests (GH-7686)
vstinner
committed
bpo-33873: regrtest: Add warning on -R 1:3 (GH-7736)

pablogsal
authored and
vstinner
committed
bpo-33873: Fix bug in `runtest.py` and add checks for invalid `-R` parameters (GH-7735)

pablogsal
authored and
vstinner
committed