Replace short anchor tags, as they cause strange CSS behaviour

libs/uvldoc/luasrc/uvldoc/proto/xhtml/section.xml

@@ -68,7 +68,7 @@ function _parse_dep( r, c, s, o )
 end
 
 %>
-<a name="top" />
+<a name="top"></a>
 <h1 class="section-title"><%=scheme-%>
 <%-if package.title then%><dfn> - <%=package.title%></dfn><%end%></h1>
 <h2 class="section-subtitle"><%=type-%>
@@ -138,7 +138,7 @@ if (i==0) == v.required then
 %>
 <hr />
 <div class="variable-documentation">
-	<a name="variable.<%=k%>" />
+	<a name="variable.<%=k%>"></a>
 	<h4 class="variable-title"><%=k-%>
 	<%-if v.title then%><dfn> - <%=v.title%></dfn><%end%></h4>
 	<div class="variable-declaration">