[gnome-packagekit] trivial: Fix rpmbuild warning

[Richard Hughes <rhughes src gnome org>]

commit 1469a070022ef92a24f2870301ddcc5619d2febf
Author: Richard Hughes <richard hughsie com>
Date:   Mon Jul 18 17:24:17 2016 +0100

    trivial: Fix rpmbuild warning

 src/gpk-update-viewer.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/gpk-update-viewer.c b/src/gpk-update-viewer.c
index f81072e..a6d24b6 100644
--- a/src/gpk-update-viewer.c
+++ b/src/gpk-update-viewer.c
@@ -1281,7 +1281,7 @@ static void
 gpk_update_viewer_reconsider_info (void)
 {
        GtkWidget *widget;
-       guint len;
+       guint len = 0;
        const gchar *title;
        g_autofree gchar *text_total = NULL;
        g_autofree gchar *text_markup = NULL;