Ticket #4071: django_cache.diff

django/utils/cache.py

@@ -55 +55 @@
         cc = {}
     for (k,v) in kwargs.items():
         cc[k.replace('_', '-')] = v
-    cc = ', '.join([dictvalue(el) for el in cc.items()])
+    cc = ', '.join([dictvalue(el).replace('_', '-') for el in cc.items()])
     response['Cache-Control'] = cc
 
 vary_delim_re = re.compile(r',\s*')