[network-manager-openswan] build: work around automake-1.15 & intltool complaining about translations in build dir

[Lubomir Rintel <lkundrak src gnome org>]

commit 5a4d03515a41b646c21ebc6cc61a8aa99cc1f904
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Tue May 5 14:04:53 2015 +0200

    build: work around automake-1.15 & intltool complaining about translations in build dir
    
    make distcheck runs a build in dist directory subtirs and then runs intltool -m
    which in turn complains about translations in a built file.
    
    The issue is reported to intltool upstream already:
    https://bugs.launchpad.net/intltool/+bug/1117944

 po/POTFILES.skip |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index de5662d..e8fab9a 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -1,2 +1,3 @@
 auth-dialog/nm-openswan-auth-dialog.desktop.in
-
+# https://bugs.launchpad.net/intltool/+bug/1117944
+sub/auth-dialog/nm-openswan-auth-dialog.desktop.in