[gnome-control-center] printers: make sure the printer job state_string is initialized

[Felipe Borges <felipeborges src gnome org>]

commit 9dd58c0f77d700995941fb624e979b6c3f357618
Author: Felipe Borges <felipeborges gnome org>
Date:   Thu Feb 25 13:53:23 2016 +0100

    printers: make sure the printer job state_string is initialized
    
    https://bugzilla.gnome.org/show_bug.cgi?id=762630

 panels/printers/pp-jobs-dialog.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/panels/printers/pp-jobs-dialog.c b/panels/printers/pp-jobs-dialog.c
index 1a1f31b..b1ad0c1 100644
--- a/panels/printers/pp-jobs-dialog.c
+++ b/panels/printers/pp-jobs-dialog.c
@@ -91,7 +91,7 @@ create_listbox_row (gpointer item,
   GtkWidget *box;
   GtkWidget *widget;
   gchar     *title;
-  gchar     *state_string;
+  gchar     *state_string = NULL;
   gint       job_state;
 
   g_object_get (job, "title", &title, "state", &job_state, NULL);