[network-manager-pptp] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit f5ee0ded2b444cf2565a76d0284166c4d60a9848
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu Aug 3 15:59:20 2017 +0200

    Update POTFILES.in

 po/POTFILES.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 2f02dca..1a8e283 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -6,5 +6,6 @@ properties/advanced-dialog.c
 properties/nm-pptp-editor-plugin.c
 properties/nm-pptp-editor.c
 shared/nm-utils/nm-shared-utils.c
+shared/nm-utils/nm-vpn-plugin-utils.c
 src/nm-pptp-service.c
 [type: gettext/glade]properties/nm-pptp-dialog.ui