rlm_perl truncating some attributes in 3.0.1

[Leggett, Torrance I.]

I'm trying to upgrade our 2.2.1 based servers to 3.0.1, but it appears
that rlm_perl is truncating some attributes. Specifically
Calling-Station-Id, User-Name and User-Password. Here is the debug output
from the server:

http://pastebin.com/GYpBS59L



And here is the rlm_perl script that currently works under 2.2.1 but
appears to be receiving truncated %RAD_REQUEST attributes:

http://pastebin.com/auKspQcU



Is this normal behavior that can be overridden at script definition time?

Thanks!