change "WRITE_1D_R8" to "WRITE_1D_RL" since most often we print "RL"  var., occasionally  "RS" var., but did not find any R4 or R8 case. provide 3 other S/R (WRITE_COPY1D_R4/R8/RS) for other types.
change "WRITE_1D_R8" to "WRITE_1D_RL" since most often we print "RL"
 var., occasionally  "RS" var., but did not find any R4 or R8 case.
provide 3 other S/R (WRITE_COPY1D_R4/R8/RS) for other types.

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