Sync to current external repository. user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org> user: Chris Manghane <cmang@golang.org>