while(<>) in perl 5.22

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#!/usr/bin/perl
use strict;
...
print;

}

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$> ./myscript.pl foo bar baz
Can't open foo: No such file or directory at ./sp2comma.pl line 13.
Can't open bar: No such file or directory at ./sp2comma.pl line 13.
Can't open baz: No such file or directory at ./sp2comma.pl line 13.

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$> ./myscript.pl foo bar baz
foobarbaz

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