"Split WINDOW, putting SIZE lines in the first of the pair.\n\
WINDOW defaults to selected one and SIZE to half its size.\n\
If optional third arg HORFLAG is non-nil, split side by side\n\
-and put SIZE columns in the first of the pair.")
+and put SIZE columns in the first of the pair. In that case,\n\
+SIZE includes that window's scroll bar, or the divider column to its right.")
(window, size, horflag)
Lisp_Object window, size, horflag;
{