Remove perl4-library deprecation warnings

Remove perl4-library deprecation warnings

After the recent, long discussion about this topic and demonstrated
cases where the deprecation warnings may actually *break* things, we
agreed on IRC to push the "active" deprecation warnings to after 5.12.

--Steffen

From f1b2d650aa126e06fc270dd0a44b8a6bf0da6e2c Mon Sep 17 00:00:00 2001
From: Steffen Mueller <smueller@cpan.org>
Date: Mon, 5 Apr 2010 15:12:41 +0200
Subject: [PATCH] Remove deprecation warnings from perl4-era tools

The libraries still have deprecation warnings in their comments but the
mandatory run-time warnings are disabled until after 5.12.