You're the expert.
What line is commented out? I see "fudge factor" but that is tacked on to the end of line 5?
It's my understaning that a test harness provides automation in testing which can be use to test code by inputing data sets- not adjusting them- e.g. "valadj" or 'Values Adjusted'.
if n_elements(yrlo'c) ne n_elements(valadj) then message,'Oooops!
This says if the actual data does not equal the adjusted data then show a message box with the message "Oooops" A total smart ass remark a programmer may include for his own amusement.
I'm sure I'm embarrasing myself but maybe you can use it to drive your point home.