revsetbenchmark: add a usage message when no arguments are passed This increase the odd someone who didn't wrote will it find out how to use this script.

revsetbenchmark: add `::tip and draft()` to the canonical list The want to test element on different side of the iterators.

revset: cosmetic changes in spanset range comparison We use the python syntax for range comparison: `a < x < c`. This is shorter, more readable and less error prone. This comparison escaped the cleanup make in e2031c8ca4f8

revset: drop spanset._contained All its users inlined it for performance reasons. (See 1d7a2771aa36 and e2031c8ca4f8)

patchbomb: includes series information in the header We includes information about the series being patch bombed in all email. Two new headers are added: * X-Mercurial-Series-Index: index of the patches in the series (starts at 1) * X-Mercurial-Series-Total: The total number of patches in the series This information is available in the email subject line, but having them formalized in the header will helps automated tools to process patches send with modern mercurial.

pager: add attend-<command> option This lets users override attend settings locally on a command granularity.

pager: variable reorder

pager: break auto out of command check loop

pager: break always out of command check loop

pager: break pager invocation out of command check loop