src/pmlogger/pmlogger_daily.sh: couple of small (but important) fixes
src/pmlogger/pmlogger_daily.sh: couple of small (but important) fixes

1. use pmsignal instead of kill ... for portability
2. tweak glob pattern used to find matching dir in
   _get_non_primary_logger_pid() ... this was causing a QA failure.
   Another fallout from the pmlogger duplicate archive name avoidance
   changes.  Not a problem for the common "primary pmlogger only"
   deployment, but could have been a problem in a pmlogger farm
   setup.

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp