[network-manager-openvpn] properties: fix format string for route metric %ld/gint64

[Thomas Haller <thaller src gnome org>]

commit ca01125042e29ca993ad1be6dc72705b9a1daaeb
Author: Thomas Haller <thaller redhat com>
Date:   Fri Jan 22 11:12:48 2016 +0100

    properties: fix format string for route metric %ld/gint64
    
    https://bugzilla.gnome.org/show_bug.cgi?id=760968

 properties/import-export.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/properties/import-export.c b/properties/import-export.c
index d624b52..be4f8ae 100644
--- a/properties/import-export.c
+++ b/properties/import-export.c
@@ -1589,7 +1589,7 @@ do_export (const char *path, NMConnection *connection, GError **error)
                         nm_ip_route_get_dest (route),
                         netmask_str,
                         nm_ip_route_get_next_hop (route) ? nm_ip_route_get_next_hop (route) : "0.0.0.0",
-                        nm_ip_route_get_metric (route));
+                        (long) nm_ip_route_get_metric (route));
        }
 #endif