[vinagre] Fix distcheck with Automake 1.15

[David King <davidk src gnome org>]

commit c7309af52563faf2dcc3209d941a870bc9e52645
Author: David King <amigadave amigadave com>
Date:   Mon Mar 2 21:26:42 2015 +0000

    Fix distcheck with Automake 1.15

 po/POTFILES.skip |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index 4a9cd84..0b7c987 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -1,5 +1,7 @@
 data/vinagre.desktop.in
 data/vinagre-file.desktop.in
+sub/data/vinagre.desktop.in
+sub/data/vinagre-file.desktop.in
 data/vinagre-mime.xml.in
 data/vinagre.schemas.in
 vinagre/vinagre-utils.c