[ic] lpr within a usertag

[Grant]

I'm able to print from my remote IC machine to my local printer server
with 'lpr file.pdf' but I'm having trouble making it work within an IC
usertag.  I'm using the following to test it:

Usertag print Order
Usertag print Routine <<EOR
sub {
        'lpr /catalogpath/file.pdf';
}
EOR

I've also tried specifying just file.pdf without the absolute path but
neither works.  There is nothing in either error.log.  Does anyone see
what's wrong here?

- Grant