When a topic provides a callable method for its text, most likely
this text will be generated from different parts, so it does not
make sense to apply gettext on the whole result, rather the method
should provide translation by itself.
This is the case with the extensions topic, which triggers a double
gettext call, making the ASCII codec fail when it encounters 8 bit
characters, and prevents the documentation from being built.
When looking up a help topic, the key is now only matched against the
short names for each topic, and not the header. So
hg help 'Environment Variables'
must be replaced with
hg help env
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.
gendoc.py is a script generating a part of the manpage (the commands
help and options) from the docstring in commands.py.
It avoids duplicating the doc between the doc/ directory and the docstrings.
To generate the manpage, 'make doc' will create all the necessary intermediate
files.
