It does not complain about that. Here is my SSCCE showing as such:

$ cat x.pl 
#!/usr/bin/env perl
use strict;
use warnings;
use utf8;

sub foo {
    my %arg = @_;
    print "Woo!\n";
    return;
}

foo (z => 3);
$ perlcritic --stern x.pl
x.pl source OK
$

[download]

This suggests that the cause of its complaint (if any) is in the code which you have not shown, such as if you have done something in the sub before that line and hence that line is not "first".

🦛

In reply to Re^3: Passing a hash plus some strings to a subroutine by hippo
in thread Passing a hash plus some strings to a subroutine by mldvx4

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