py3: pass ctx.rev() instead of ctx in range()

hgext/acl.py

@@ -356,7 +356,7 b' def hook(ui, repo, hooktype, node=None, '
     allow = buildmatch(ui, repo, user, 'acl.allow')
     deny = buildmatch(ui, repo, user, 'acl.deny')
 
-    for rev in xrange(repo[node], len(repo)):
+    for rev in xrange(repo[node].rev(), len(repo)):
         ctx = repo[rev]
         branch = ctx.branch()
         if denybranches and denybranches(branch):