I can confirm this on Hardy x86:
==15511== Memcheck, a memory error detector.
==15511== Copyright (C) 2002-2007, and GNU GPL'd, by Julian Seward et al.
==15511== Using LibVEX rev 1804, a library for dynamic binary translation.
==15511== Copyright (C) 2004-2007, and GNU GPL'd, by OpenWorks LLP.
==1
Public bug reported:
Enter '' (that's single quote, single quote, enter) in bash. The
following output is produced.
[EMAIL PROTECTED]:~$ ''
Traceback (most recent call last):
File "/usr/bin/command-not-found", line 22, in ?
if not CommandNotFound(options.data_dir).advise(args[0]):
File "/
