Hrmm, I do see the difference between your output and mine... the weird thing is I have no idea why mine would be doing this... I have not touched anything "major" after recently installing 14.0 from scratch. I installed a bunch of packages from slackbuilds.org after rebuilding them... I'll look through the packages when I get home tonight. I know it's hard to figure out what might be affecting this change, but if you or anyone has any ideas why it might be doing this, please chime in.

So after seeing the output from AlienBob, I decided to run rpm2tgz directly from the command line to see if I could figure anything with that. Interesting thing is running rpm2tgz from the command produces the exact output listed in AlienBob's post! Running it from the script however, produces the output from mine... what gives?

EDIT: Ok, so I believe I figured out the cause of my issue and here's the lowdown! When AlienBob's script calls rpm2tgz, it passes along the full path and in my case it's a lengthy one, /usr/custom/src/slackware/dropbox/client. Regardless, I've narrowed it down to ANY path containing a directory named 'src'. If that specific directory exists in the path to the rpm then rpm2tgz bombs. Rename that directory to something else and it's fine!

I suppose now that I've found the cause I can work around this issue for the time being and will mark this as solved...

Good catch. See here.