printcap(5) error

[martin]

printcap(5) says:

     Name    Type    Default              Description
     sd      str     /var/spool/output    spool directory

However as far as I can tell, the actual default is
/var/spool/output/lpd.  That's what's listed in
usr.sbin/lpr/common_source/pathnames.h, and lpd behaves the same without
the sd option as when it is set to /var/spool/output/lpd.

Am I missing something?

Martin