in reply to trim() magic

What does the assignment @_ = @_ accomplish?
Caution: Contents may have been coded under pressure.

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Re^2: trim() magic
by japhy (Canon) on Jan 11, 2006 at 20:00 UTC
    It breaks the aliasing nature of the elements in @_.
    Jeff japhy Pinyan, P.L., P.M., P.O.D, X.S.: Perl, regex, and perl hacker
    How can we ever be the sold short or the cheated, we who for every service have long ago been overpaid? ~~ Meister Eckhart
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In Section Cool Uses for Perl