Emacs: separate limitations of revision range and shown changesets.
For revision range limitation,
use "-r" opt with range notation at "hg log" invocation, and
use hg-rev-completion-limit as default value.
For shown changesets limitation,
use "-l" opt at "hg log" invocation, and
use hg-log-limit as default value.
#!/bin/sh
hg init
mkfifo p
hg serve --stdio < p &
P=$!
(echo lock; echo addchangegroup; sleep 5) > p &
Q=$!
sleep 1
kill -HUP $P
wait
ls .hg