<oerjan> le/rn scowrevs///hackenv/share/scowrevs is a list of repository revision ranges that affected a lot of files but in the end changed nothing (usually because of a revert at the end). Most of our custom repository lookup commands ignore these to reduce noise.

wn "${1:-explain}" -n1 -hypen -hypev | sed -e '1,/^Sense/d;/^$/,$d' | tr '\n' ' ' | sed -e 's/  */ /g'