webcommands: fix increments lost by
894875eae49b
help: move "revision syntax" help topics into online help
Move the "Specifying Single Revisions" and "Specifying Multiple
Revisions" help topics from the manual page into the helptable
so they are available both online and in the manual page.
help: helptable is an ordered collection
The helptable is used for helptopics listed in the manual
page, so the order of topics should not be random.
Convert it from a dictionary into a tuple of tuples.
Also reorder helptable entries to keep previous manual
page order.
help: enable listing of a subset of the command list
Instead of giving the "command %s is ambiguous" error message
with a bare list of possible command, display help list
for all commands starting with the given string.