Re: debugging.texi

[Richard Stallman]

    I think the empty string argument is a kludge.  Maybe we should just
    not document it and tell people to use a symbol or nil from lisp and
    the name of the function or no name (i.e., the empty string)
    interactively.

I agree.  It is a mistake to try to document every detail of the
behavior.  We only document what we really want users to use.

    ! 
    ! If specified, @var{function-name} should normally be a symbol with a
    ! function definition or @code{nil}, but, for internal technical
    ! reasons, an empty string can be used as a substitute for @code{nil}.
    ! 
    ! If @var{function-name} is a address@hidden symbol with a function
    ! definition, this command returns @var{function-name}, even if
    ! @var{function-name} was not previously set up to break on entry.  If
    ! @var{function-name} is omitted, @code{nil}, or an empty string, it
    ! returns a list of all functions for which break-on-entry was canceled.

There's no need to mention all those details.