debian: Fix all postinst/prerm/postrm scripts to include debhelper additions

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/debian/uuid-runtime.prerm b/debian/uuid-runtime.prerm
index 3788432..241d7a0 100644
--- a/debian/uuid-runtime.prerm
+++ b/debian/uuid-runtime.prerm
@@ -4,3 +4,7 @@
 then
 	/usr/sbin/uuidd -k || true
 fi
+
+#DEBHELPER#
+
+exit 0