* etc/NEWS: * doc/lispref/windows.texi (Choosing Window Options): * doc/emacs/windows.texi (Window Choice): Improve documentation of 'split-window-preferred-direction'.
* etc/NEWS: * doc/lispref/windows.texi (Choosing Window Options): * doc/emacs/windows.texi (Window Choice): Improve documentation of 'split-window-preferred-direction'.