Fix accidental omission in rc_pmie wrt IS_ON env var - we no longer
set this, so don't use it. Also cleanup a similar issue in the
pmlogger cron scripts to do with IS_ON for IRIX platforms - can now
be done consistently for all platforms (note also -h and -L equate,
in both Solaris and Linux versions of the test(1) utility), whereas
previously we'd have defaulted to back-compat IRIX behaviour (bad).
Fix accidental omission in rc_pmie wrt IS_ON env var - we no longer
set this, so don't use it. Also cleanup a similar issue in the
pmlogger cron scripts to do with IS_ON for IRIX platforms - can now
be done consistently for all platforms (note also -h and -L equate,
in both Solaris and Linux versions of the test(1) utility), whereas
previously we'd have defaulted to back-compat IRIX behaviour (bad).