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.postrm b/debian/uuid-runtime.postrm
index 62b1c7d..f077001 100644
--- a/debian/uuid-runtime.postrm
+++ b/debian/uuid-runtime.postrm
@@ -5,3 +5,6 @@
 	rm -rf /var/run/uuidd
 fi
 
+#DEBHELPER#
+
+exit 0