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/lib/libppath.tex b/Doc/lib/libppath.tex
index f1d17d6..6639c7c 100644
--- a/Doc/lib/libppath.tex
+++ b/Doc/lib/libppath.tex
@@ -80,7 +80,7 @@
detect mount points for all \UNIX{} and \POSIX{} variants.
\end{funcdesc}
-\begin{funcdesc}{join}{p\optional{\, q\optional{\, ...}}}
+\begin{funcdesc}{join}{p\optional{, q\optional{, ...}}}
Joins one or more path components intelligently. If any component is
an absolute path, all previous components are thrown away, and joining
continues. The return value is the concatenation of \var{p}, and
@@ -103,7 +103,7 @@
converts forward slashes to backward slashes.
\end{funcdesc}
-\begin{funcdesc}{samefile}{p\, q}
+\begin{funcdesc}{samefile}{p, q}
Return true if both pathname arguments refer to the same file or
directory (as indicated by device number and i-node number).
Raise an exception if a \function{os.stat()} call on either pathname
@@ -130,7 +130,7 @@
at most one period.
\end{funcdesc}
-\begin{funcdesc}{walk}{p\, visit\, arg}
+\begin{funcdesc}{walk}{p, visit, arg}
Calls the function \var{visit} with arguments
\code{(\var{arg}, \var{dirname}, \var{names})} for each directory in the
directory tree rooted at \var{p} (including \var{p} itself, if it is a