bug#6396: 24.0.50; doc string of `make-directory'

[Drew Adams]

>From the doc string:
 
"Noninteractively, the second (optional) argument PARENTS says whether
to create parent directories if they don't exist.  Interactively,
this happens by default."
 
HOW does it say whether to create parent dirs?
What value(s) say to do that? What value(s) say not to do that?
 
"this happens by default": What happens by default? If you mean to say
that for interactive use parent dirs are always created (when
nonexistent), then say that.
 

In GNU Emacs 24.0.50.1 (i386-mingw-nt5.1.2600)
 of 2010-06-07 on 3249CTO
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (4.4) --no-opt --cflags -Ic:/xpm/include'