[gtksourceview] Updated POTFILES.skip

[Piotr DrÄg <piotrdrag src gnome org>]

commit 92b1de50a00ad2b471838d4739cd407b1986a7b5
Author: Piotr DrÄg <piotrdrag gmail com>
Date:   Sat Dec 22 16:31:28 2012 +0100

    Updated POTFILES.skip

 po/POTFILES.skip |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index e7376ca..b2b6793 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -1,3 +1,4 @@
 data/styles/testdark.xml
+docs/reference/lang-tutorial.xml
 gtksourceview/regex/glib/gregex.c
 tests/test-scheme.xml