Changed \indexsubitem from ({\tt HTMLParser} method) to just

(HTMLParser method).

This makes it more consistent with other modules.  All three *mllib modules
need this change.

Doc/lib/libhtmllib.tex

@@ -70,7 +70,7 @@ handlers for all HTML 2.0 and many HTML 3.0 and 3.2 elements.
 In addition to tag methods, the \code{HTMLParser} class provides some
 additional methods and instance variables for use within tag methods.
 
-\renewcommand{\indexsubitem}{({\tt HTMLParser} method)}
+\renewcommand{\indexsubitem}{(HTMLParser method)}
 
 \begin{datadesc}{formatter}
 This is the formatter instance associated with the parser.

Doc/libhtmllib.tex

@@ -70,7 +70,7 @@ handlers for all HTML 2.0 and many HTML 3.0 and 3.2 elements.
 In addition to tag methods, the \code{HTMLParser} class provides some
 additional methods and instance variables for use within tag methods.
 
-\renewcommand{\indexsubitem}{({\tt HTMLParser} method)}
+\renewcommand{\indexsubitem}{(HTMLParser method)}
 
 \begin{datadesc}{formatter}
 This is the formatter instance associated with the parser.