Change "\," to just "," in function signatures.  This is easier to maintain,
works better with LaTeX2HTML, and allows some simplification of the python.sty
macros.
diff --git a/Doc/libselect.tex b/Doc/libselect.tex
index 956bf7f..5a800f5 100644
--- a/Doc/libselect.tex
+++ b/Doc/libselect.tex
@@ -13,7 +13,7 @@
 \code{perror()}.
 \end{excdesc}
 
-\begin{funcdesc}{select}{iwtd\, owtd\, ewtd\optional{\, timeout}}
+\begin{funcdesc}{select}{iwtd, owtd, ewtd\optional{, timeout}}
 This is a straightforward interface to the \UNIX{} \code{select()}
 system call.  The first three arguments are lists of `waitable
 objects': either integers representing \UNIX{} file descriptors or