I don't see why you ask users to wget idea.c considering that has to do with symmetric encryption and I can not in the slightest think of why users would need to do anything with that to change the maximum asymmetric key strength. However if users wget that file without torifying wget they will leak their real IP address when they wget both gnupg-1.4.12.tar.bz2 and idea.c.gz, and I imagine that will be a pretty small crowd of people considering I doubt that barely anyone downloads that combination of files in such a way.