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   open(STDERR, ">&STDOUT") if $redirect_stderr;
   exec("/usr/bin/nslookup", "-q=$query_type",
        $input, $nameserver) or die "exec: $!";

print "Without:\n";
print "| $_\n" foreach nslookup('test', 'A');
...

print "With:\n";
print "| $_\n" foreach nslookup('test', 'A');

Without:
Note:  nslookup is deprecated and may be removed from future releases.
...
| Address:      10.0.0.1#53
|
| ** server can't find test: NXDOMAIN