Prefer ReuseAddr over Reuse, with IO::Socket::INET

Reuse is deprecated and ReuseAddr is prefered, according to documentation.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

util/TLSProxy/Proxy.pm

diff --git a/util/TLSProxy/Proxy.pm b/util/TLSProxy/Proxy.pm
index 1e90e66..0abd312 100644
--- a/util/TLSProxy/Proxy.pm
+++ b/util/TLSProxy/Proxy.pm
@@ -173,7 +173,7 @@
         LocalPort   => $self->proxy_port,
         Proto       => "tcp",
         Listen      => SOMAXCONN,
-        Reuse       => 1
+        ReuseAddr   => 1
     );
 
     if ($proxy_sock) {