Re: functions can fully unset local vars in other scopes

[Emanuele Torre]

>  It may be nice to also add a "force" option for `unset' that makes it
>  actually unset the variable if it is `local'. Since this could be
>  useful in some cases and it won't be possible after the behaviour is
>  changed.

Clarification
  I meant that it should fully undeclare local variables in the current
  scope, not that it should be able to fully undeclare variables from
  other scopes.

  Now that I think about it, it does not really make sense to implement
  it like a "force" option.

  I think adding a "-l" option that behaves similarly to "-v", but only
  works on local varnames of the current scope and fully undeclares them
  would make more sense.