minor fix: one zero too many in assert


git-svn-id: svn://svn.code.sf.net/p/fonttools/code/trunk@547 4cde692c-a291-49d1-8350-778aa11640f8
diff --git a/Lib/fontTools/ttLib/tables/otBase.py b/Lib/fontTools/ttLib/tables/otBase.py
index 43149d2..a45f649 100644
--- a/Lib/fontTools/ttLib/tables/otBase.py
+++ b/Lib/fontTools/ttLib/tables/otBase.py
@@ -483,7 +483,7 @@
 
 
 def packULong(value):
-	assert 0 <= value < 0x1000000000, value
+	assert 0 <= value < 0x100000000, value
 	return struct.pack(">L", value)