bug#31574: 27.0; Doc string for `with-help-window'

[Drew Adams]

The doc string ends with this sentence: 

  See 'help-window-setup' for more options.

But that link takes you to this text, which tells you nothing at all
about "more options":

  Set up help window WINDOW for 'with-help-window'.
  WINDOW is the window used for displaying the help buffer.
  Return VALUE.



In GNU Emacs 27.0.50 (build 3, x86_64-w64-mingw32)
 of 2018-03-21
Repository revision: e70d0c9e66d7a8609450b2889869d16aeb0363b5
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --without-dbus --host=x86_64-w64-mingw32
 --without-compress-install -C 'CFLAGS=-O2 -static -g3''