[Minor] use quilt for debian/source/format

* Match the build scripts and main Debian packaging.
* This allows for a separate debian/ directory in debian.tar.gz, see
  https://www.debian.org/doc/manuals/maint-guide/dother.en.html#sourcef

diff --git a/debian/source/format b/debian/source/format
index 89ae9db8f88b823b6a7eabf55e203658739da122..163aaf8d82b6c54f23c45f32895dbdfdcc27b047 100644 (file)
--- a/debian/source/format
+++ b/debian/source/format
@@ -1 +1 @@
-3.0 (native)
+3.0 (quilt)