dir() method description revised based on comments from Greg Stein.
diff --git a/Doc/lib/libftplib.tex b/Doc/lib/libftplib.tex
index 4a5f98c..becc99b 100644
--- a/Doc/lib/libftplib.tex
+++ b/Doc/lib/libftplib.tex
@@ -208,12 +208,13 @@
\end{methoddesc}
\begin{methoddesc}{dir}{argument\optional{, \ldots}}
-Return a directory listing as returned by the \samp{LIST} command, as
-a list of lines. The optional \var{argument} is a directory to list
-(default is the current server directory). Multiple arguments can be
-used to pass non-standard options to the \samp{LIST} command. If the
-last argument is a function, it is used as a \var{callback} function
-as for \method{retrlines()}.
+Produce a directory listing as returned by the \samp{LIST} command,
+printing it to standard output. The optional \var{argument} is a
+directory to list (default is the current server directory). Multiple
+arguments can be used to pass non-standard options to the \samp{LIST}
+command. If the last argument is a function, it is used as a
+\var{callback} function as for \method{retrlines()}; the default
+prints to \code{sys.stdout}. This method returns \code{None}.
\end{methoddesc}
\begin{methoddesc}{rename}{fromname, toname}