if the current one is at the bottom.\n\
When calling from a program, supply a number as argument or nil.\n\
\n\
-If in the minibuffer, `minibuf-scroll-window' if non-nil\n\
+If in the minibuffer, `minibuffer-scroll-window' if non-nil\n\
specifies the window to scroll.\n\
If `other-window-scroll-buffer' is non-nil, scroll the window\n\
showing that buffer, popping the buffer up if necessary.")