my $line appears as an argument of = which in turn is an argument of defined.

You're still claiming my $line is an argument of defined, and it's not. Operators have operands (not arguments), and the variable $line is defined's operand.

In reply to Re^2: Declare my variable in sysread - Mojo::File::slurp by ikegami
in thread Declare my variable in sysread - Mojo::File::slurp by srchulo

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