pdfdump fails to open tmp file

Trying to use pkt.pdfdump() fires an error about "random_filename.pdf.pdf" not found.
If I change line 417 in packet.py
    `subprocess.Popen([conf.prog.pdfreader, fname+".pdf"])`
to
    `subprocess.Popen([conf.prog.pdfreader, fname])`
then it works fine. I guess it has to do with the autoext argument used above this line

Hope this will help...