revlog: rewrite several method docstrings
- methods: findmissing(), nodesbetween(), descendants(), ancestors()
- the goal is precise, concise, accurate, grammatical, understandable,
consistently formatted docstrings
#!/bin/sh
"$TESTDIR/hghave" fifo || exit 80
hg init
mkfifo p
hg serve --stdio < p &
P=$!
(echo lock; echo addchangegroup; sleep 5) > p &
Q=$!
sleep 3
kill -HUP $P
wait
echo .hg/* .hg/store/*