You've hardcoded your path to your perl binary in the script. Maybe that's OK, because it's hardwired in the shebang line as well... but personally, I would still prefer use of the special variable $^X, anyway. In your case, it also will contain the value '/usr/bin/perl'. But it will make less problems for maintenance, for people whose perl is in another location.

exec { $^X } $^X, @arg;
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