Remove obsolete files and old upgrade paths for users coming from version prior to wheezy

debian/nut-client.postrm

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+set -e
+
+case "$1" in
+    remove)
+        [ -d /run/nut ] && rmdir --ignore-fail-on-non-empty /run/nut >/dev/null 2>&1
+    ;;
+    purge|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+    ;;
+
+    *)
+        echo "postrm called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+#DEBHELPER#
+
+exit 0