Pass the number of results found to the template.

debexpo/plugins/api.py

@@ -297,6 +297,7 @@ class BasePlugin(object):
 
         template = self._find_template(self.name, render_format)
         return template.render_unicode(results=self.results,
+                                       nb_results=self.nb_results,
                                        h=helpers,
                                        **render_args)