From Debian package 0.0.20090621-1
In Manoj's topic-debadim branch
In Russell's 2010-07-08 patch
0050-Tweaks-to-the-dpkg-policy-especially-for-support-of-.patch (part of)

Allow dpkg to list ptys (why?)

Index: policy/modules/contrib/dpkg.te
===================================================================
--- policy/modules/contrib/dpkg.te.orig
+++ policy/modules/contrib/dpkg.te
@@ -158,6 +158,8 @@
 # for installing kernel packages
 storage_raw_read_fixed_disk(dpkg_t)
 
+term_list_ptys(dpkg_t)
+
 files_relabel_non_auth_files(dpkg_t)
 files_manage_non_auth_files(dpkg_t)
 auth_dontaudit_read_shadow(dpkg_t)