Fix unbalanced parenthesis in text.
diff --git a/Doc/lib/libcurses.tex b/Doc/lib/libcurses.tex
index 9c11553..a79e02c 100644
--- a/Doc/lib/libcurses.tex
+++ b/Doc/lib/libcurses.tex
@@ -997,7 +997,7 @@
\begin{methoddesc}[window]{timeout}{delay}
Sets blocking or non-blocking read behavior for the window. If
-\var{delay} is negative, blocking read is used, which will wait
+\var{delay} is negative, blocking read is used (which will wait
indefinitely for input). If \var{delay} is zero, then non-blocking
read is used, and -1 will be returned by \method{getch()} if no input
is waiting. If \var{delay} is positive, then \method{getch()} will