Avoid using a Python keyword as a renderer name

src/allmydata/web/check_results.py

@@ -232,7 +232,7 @@ class LiteralCheckResultsElement(Element):
         super(LiteralCheckResultsElement, self).__init__()
 
     @renderer
-    def return(self, req, tag):
+    def return_to(self, req, tag):
         return_to = get_arg(req, "return_to", None)
         if return_to:
             return tags.div(tags.a("Return to file.", href=return_to))

src/allmydata/web/literal-check-results.xhtml

@@ -11,7 +11,7 @@
 
 <div>Literal files are always healthy: their data is contained in the URI</div>
 
-<div t:render="return" />
+<div t:render="return_to" />
 
   </body>
 </html>