Fix broken HTML in the head; this was reported by a user as causing Opera 6.01

to crash.  The user has reported the problem to Opera, but we still should
generate something that passes for HTML.

Doc/perl/l2hinit.perl

@@ -613,7 +613,7 @@ sub make_head_and_body {
         $MY_PARTIAL_HEADER = join('',
             ($CHARSET && $HTML_VERSION ge "2.1"
              ? ('<meta http-equiv="Content-Type" content="text/html; '
-                . "charset=$charset\">\n")
+                . "charset=$CHARSET\">\n")
              : ''),
             ($BASE ? "<base href=\"$BASE\">\n" : ''),
             "<link rel=\"STYLESHEET\" href=\"$STYLESHEET\">\n",