SF bug 485175:  buffer overflow in traceback.c.
Bugfix candidate.
tb_displayline():  the sprintf format was choking off the file name, but
used plain %s for the function name (which can be arbitrarily long).
Limit both to 500 chars max.
diff --git a/Misc/ACKS b/Misc/ACKS
index 1975ced..0e9e07f 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -274,6 +274,7 @@
 Ken Manheimer
 Vladimir Marangozov
 Doug Marien
+Alex Martelli
 Anthony Martin
 Roger Masse
 Nick Mathewson