Fix some minor nits about the use of \optional in parameter lists.
diff --git a/Doc/mac/libmacfs.tex b/Doc/mac/libmacfs.tex
index 15ddfde..db8f619 100644
--- a/Doc/mac/libmacfs.tex
+++ b/Doc/mac/libmacfs.tex
@@ -49,7 +49,7 @@
is returned).
\end{funcdesc}
-\begin{funcdesc}{StandardGetFile}{\optional{type, ...}}
+\begin{funcdesc}{StandardGetFile}{\optional{type, \moreargs}}
Present the user with a standard ``open input file''
dialog. Optionally, you can pass up to four 4-character file types to limit
the files the user can choose from. The function returns an \pytype{FSSpec}
@@ -57,12 +57,12 @@
without cancelling.
\end{funcdesc}
-\begin{funcdesc}{PromptGetFile}{prompt\optional{, type, ...}}
+\begin{funcdesc}{PromptGetFile}{prompt\optional{, type, \moreargs}}
Similar to \function{StandardGetFile()} but allows you to specify a
prompt.
\end{funcdesc}
-\begin{funcdesc}{StandardPutFile}{prompt, \optional{default}}
+\begin{funcdesc}{StandardPutFile}{prompt\optional{, default}}
Present the user with a standard ``open output file''
dialog. \var{prompt} is the prompt string, and the optional
\var{default} argument initializes the output file name. The function
@@ -187,7 +187,7 @@
An interface to the \C{} routine \cfunction{GetAliasInfo()}.
\end{methoddesc}
-\begin{methoddesc}[Alias]{Update}{file, \optional{file2}}
+\begin{methoddesc}[Alias]{Update}{file\optional{, file2}}
Update the alias to point to the \var{file} given. If \var{file2} is
present a relative alias will be created.
\end{methoddesc}