fix(cshtml): trailing solidus not allowed on anchor tag

Co-authored-by: Lukáš Zaoral <lzaoral@redhat.com>

Author: jamacku

src/lib/writer-html.cc

@@ -454,7 +454,7 @@ void HtmlWriter::handleDef(const Defect &def)
     d->core.writeHeaderOnce(d->scanProps, d->plainTextUrl);
 
     // HTML anchor
-    d->str << "<a name='def" << ++(d->defCnt) << "'/>";
+    d->str << "<a id='def" << ++(d->defCnt) << "'></a>";
 
     d->str << "<b>Error: <span style='background: #C0FF00;'>"
         << HtmlLib::escapeTextInline(def.checker) << "</span>";