sub strip { s/\A\s+//, s/\s+\z// for my @r = @_; @r }

##</code><code>##

sub strip {
    s/\A\s+//, s/\s+\z// for my @r = @_;
    @r
}

##</code><code>##

for ( 1 .. 3 ) {
    run_fork { child {
        # [snip] some stuff ...
        exit;
    } }
}