improved wordcount by removing pointless test

--HG--
branch : trunk
diff --git a/jinja2/filters.py b/jinja2/filters.py
index fd3d66f..633dbdf 100644
--- a/jinja2/filters.py
+++ b/jinja2/filters.py
@@ -374,11 +374,9 @@
                                 len(word.split('\n', 1)[0]) >= pos)],
                    word), s.split(' '))
 
-
 def do_wordcount(s):
     """Count the words in that string."""
-    return len(x for x in s.split() if x)
-
+    return len(s.split())
 
 def do_int(value, default=0):
     """Convert the value into an integer. If the