Fix a lot of markup and meta-information glitches.
diff --git a/Doc/lib/libdl.tex b/Doc/lib/libdl.tex
index 325724c..d4a799e 100644
--- a/Doc/lib/libdl.tex
+++ b/Doc/lib/libdl.tex
@@ -67,11 +67,11 @@
Dl objects, as returned by \function{open()} above, have the
following methods:
-\begin{methoddesc}{close}{}
+\begin{methoddesc}[dl]{close}{}
Free all resources, except the memory.
\end{methoddesc}
-\begin{methoddesc}{sym}{name}
+\begin{methoddesc}[dl]{sym}{name}
Return the pointer for the function named \var{name}, as a number, if
it exists in the referenced shared object, otherwise \code{None}. This
is useful in code like:
@@ -87,7 +87,7 @@
\NULL{} pointer)
\end{methoddesc}
-\begin{methoddesc}{call}{name\optional{, arg1\optional{, arg2\ldots}}}
+\begin{methoddesc}[dl]{call}{name\optional{, arg1\optional{, arg2\ldots}}}
Call the function named \var{name} in the referenced shared object.
The arguments must be either Python integers, which will be
passed as is, Python strings, to which a pointer will be passed,