Hack: make sure LaTeX2HTML doesn't change -- to - in mkhowto

description.

Doc/doc/doc.tex

@@ -924,8 +924,8 @@ distribution, to create or maintain whole documents or sections.
 	symbolic link to it or run it in place; the actual script file 
 	must be stored as part of the documentation source tree,
 	though it may be used to format documents outside the
-	tree.  Use \program{mkhowto --help} for a list of command line 
-	options.
+	tree.  Use \program{mkhowto -}\program{-help} for a list of
+        command line options.
 
         \program{mkhowto} can be used for both \code{howto} and
         \code{manual} class documents.  (For the later, be sure to get