Keeping both rst and in-file documentation in sync can be harsh.
So, simplify the script's internal documntation to a bare minimum,
and add a mention to the ReST file with its full documentation.
This way, a quick help is still available at the command line,
while the complete one is maintained at the ReST format.
As we won't be using pad2rst anymore, do a cleanup at the ReST
Signed-off-by: Mauro Carvalho Chehab <email@example.com>
Signed-off-by: Jonathan Corbet <firstname.lastname@example.org>