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-rw-r--r--Doc/lib/libal.tex2
1 files changed, 1 insertions, 1 deletions
diff --git a/Doc/lib/libal.tex b/Doc/lib/libal.tex
index 708c54e..51a0312 100644
--- a/Doc/lib/libal.tex
+++ b/Doc/lib/libal.tex
@@ -23,7 +23,7 @@ documented upper limit.)
Module \code{al} defines the following functions:
\renewcommand{\indexsubitem}{(in module al)}
-\begin{funcdesc}{openport}{name\, direction\, config}
+\begin{funcdesc}{openport}{name\, direction\optional{\, config}}
Equivalent to the C function ALopenport(). The name and direction
arguments are strings. The optional config argument is an opaque
configuration object as returned by \code{al.newconfig()}. The return