Your example replacements are insufficient, because in those cases the string must be printed with a newline.
For 'print first arg', for example, it should be: print shift, "\n"
(or maybe:
print "$ARGV[0]\n"
)
giving a length of 17 (or maybe 18), exactly the same as (or maybe more than) the score attributed. In the context of a larger program neither '-l' nor 'shift' would likely be reasonable, so you could say the writer has been generous to perl here.
Hugo
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