QA output created by 531
dbpmda> open socket inet PORT
Connect to PMDA on inet port PORT
dbpmda> getdesc on
dbpmda> desc sample.daemon_pid
PMID: 29.0.1
    Data Type: 32-bit unsigned int  InDom: PM_INDOM_NULL 0xffffffff
    Semantics: instant  Units: none
dbpmda> fetch sample.daemon_pid
PMID(s): 29.0.1
pmResult ... numpmid: 1
  29.0.1 (sample.daemon_pid): numval: 1 valfmt: 0 vlist[]:
   value PID
dbpmda> text sample.daemon_pid
PMID: 29.0.1
[Process id of PMDA daemon]
The process id of PMDA daemon, -1 if the daemon is a DSO.
dbpmda> close
dbpmda>