problem with latest muttprint

While probably no one else cares, I'll note this for myself so I'll have somewhere to look later.

Using gentoo, with the most recent muttprint and tetex. I was unable to use muttprint from another program, notably mutt. After debugging a but I realized, what was actually happening was that dvips was dying with an error like "dvips: ! couldn't open output pipe".

After a quick google search I learned dvips had a security problem with executing malicious code. So I was able to fix up muttprint to do the right thing.