gnu: Add one more missing module import.

This is a follow-up to commit 61fc72d3ac949d0c65690ee25bb1daf01f39bb42.

* gnu/packages/backup.scm: Add missing import of (gnu packages protobuf).

diff --git a/gnu/packages/backup.scm b/gnu/packages/backup.scm
index 692795c..00986a3 100644 (file)
--- a/gnu/packages/backup.scm
+++ b/gnu/packages/backup.scm
@@ -65,6 +65,7 @@
   #:use-module (gnu packages pcre)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages protobuf)
   #:use-module (gnu packages python)
   #:use-module (gnu packages python-crypto)
   #:use-module (gnu packages python-web)