Fixing missed namechange of variable.

diff --git a/src/tree-cutter.py b/src/tree-cutter.py
index 5f411496488e72178985fa8bf7c973f4bc1e0dfb..14c94a76dadfd0790ebc2604a1cc5ae19ffbc962 100755 (executable)
--- a/src/tree-cutter.py
+++ b/src/tree-cutter.py
@@ -321,7 +321,7 @@ class Sitemap():
         print "Prepare  [%5.2f s]" % (round(t2-t1,2))
         sitelang = set()
         for link in self._tree:
-            sitelang = lang.union(set(link.languages()))
+            sitelang = sitelang.union(set(link.languages()))
         t3 = time.time()
         print "Language [%5.2f s]" % (round(t3-t2,2))
         for link in self._tree: