LP #838978: Fixed TypeError in cache_detail ZMI view.

doc/CHANGES.rst

@@ -8,6 +8,8 @@ http://docs.zope.org/zope2/releases/.
 2.13.14 (unreleased)
 --------------------
 
+- LP #838978: Fixed TypeError in cache_detail ZMI view.
+
 - Cleanup lock and pid files if the process dies early in startup.
 
 - Added PubStart, PubBeforeCommit and PubAfterTraversal events to the

src/App/CacheManager.py

@@ -102,8 +102,8 @@ class CacheManager:
         if REQUEST is not None:
             # format as text
             REQUEST.RESPONSE.setHeader('Content-Type', 'text/plain')
-            return '\n'.join('%6d %s'%(count, name) for count, name in detail)
-        else:
+            return '\n'.join(
+                ['%6d %s' % (count, name) for name, count in detail])
         # raw
         return detail