logilab-common #6509 new options without [yn] in contradiction with option names [deprecated]

w options without [yn] in are contradiction with option names and option help messages; example:

pylint --help
[...]
    -r, --reports       Tells wether to display a full report or only the
                        messages [current: yes]

but:

pylint  --reports

disables the reports !

also, the ancient use '-yn' is broken ...

priorityimportant
typebug
done in0.54.0
load0.000
load left0.000
closed by<not specified>