python: fix test_skipdata.py after the change in the core on SKIPDATA's callback prototype
diff --git a/bindings/python/test_skipdata.py b/bindings/python/test_skipdata.py
index dff6c8b..bcc3b39 100755
--- a/bindings/python/test_skipdata.py
+++ b/bindings/python/test_skipdata.py
@@ -30,7 +30,7 @@
 
 
 # Sample callback for SKIPDATA option
-def testcb(buffer, offset, userdata):
+def testcb(buffer, size, offset, userdata):
     # always skip 2 bytes of data
     return 2