The gettext function is just another name for the normal _ function
and it is used for translating docstrings when using _ would make
pygettext.py output a warning.
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
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.
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.
Simply use find_exe('hg') as the default value for $HG and require to manually
set it if you have special requirements.
While the default will not always be 100% correct (i.e. the identical hg
version) for many users it is and for the others the hg executable found in
the PATH should do most things correctly.
Developers or other users with multiple installs can set $HG or run something
like util.set_hgexecutable in their shell or python scripts.
Additionally util.hgexecutable() is now available so extensions can access
the value with a public interface, too.
