[Patch #633635 from David M. Cooke]
Make docs accurate; getch() in nodelay mode returns -1
diff --git a/Doc/lib/libcurses.tex b/Doc/lib/libcurses.tex
index 1f6f4c3..40711f3 100644
--- a/Doc/lib/libcurses.tex
+++ b/Doc/lib/libcurses.tex
@@ -701,7 +701,7 @@
\begin{methoddesc}[window]{getch}{\optional{x, y}}
Get a character. Note that the integer returned does \emph{not} have to
be in \ASCII{} range: function keys, keypad keys and so on return numbers
-higher than 256. In no-delay mode, an exception is raised if there is
+higher than 256. In no-delay mode, -1 is returned if there is
no input.
\end{methoddesc}