Fix html closing tag

Author: technicalguru

src/WebApp/BootstrapTheme/BreadcrumbRenderer.php

@@ -18,7 +18,7 @@ public function render() {
 			       '</li>';
 		}
 		$rc .= '</ol>';
-		       $this->renderEndTag('nav');
+		$rc .= $this->renderEndTag('nav');
 		return $rc;
 	}
 }