o Updating:   fix behavior of ptracers_monitor when monitor output is written to a   netcdf-file; still not independent of monitor.F (writes in the same   file).
o Updating:
  fix behavior of ptracers_monitor when monitor output is written to a
  netcdf-file; still not independent of monitor.F (writes in the same
  file).

altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h