# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 2016-06-23 20:08:10
# Node ID 20fabe814f89fd5a2a75c19de79507e460759a2a
# Parent  c2193e59ef9f0435a62ee2cc3c5cb8d260dfe1a2

revsets: use itervalues() where only values are needed

I don't think there will be a noticeable speedup, but it removes an
unused variable.

diff --git a/mercurial/revset.py b/mercurial/revset.py
--- a/mercurial/revset.py
+++ b/mercurial/revset.py
@@ -1145,7 +1145,7 @@ def head(repo, subset, x):
     getargs(x, 0, 0, _("head takes no arguments"))
     hs = set()
     cl = repo.changelog
-    for b, ls in repo.branchmap().iteritems():
+    for ls in repo.branchmap().itervalues():
         hs.update(cl.rev(h) for h in ls)
     # XXX We should combine with subset first: 'subset & baseset(...)'. This is
     # necessary to ensure we preserve the order in subset.