document changes in testreport: replace "cat -n" by "nl" (two occurrences) replace "grep -A3" by an "sed" command (one occurrence)
document changes in testreport:
replace "cat -n" by "nl" (two occurrences)
replace "grep -A3" by an "sed" command (one occurrence)

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