I used printtool to configure an SMB-shared printer.  There is a dollar
sign ($) in the password needed to connect to the share.  The password is
stored in /var/spool/lpd/<QUEUE>/script.cfg, apparently a Bourne-shell
script fragment, as a variable assignment.  However, the RHS of the
assignment is double-quoted, with no escaping of the dollar sign. 
Consequently, variable substitution takes place, and the incorrect password
is used.

I can work around this bug by editing the script.cfg file to use single
quotes.  However, if I use printtool to change anything else, this file is
rewritten.

Note that the documentation says nothing about needing to escape dollar
signs, etc...