From: Hans Kristian Rosbach <hk-github@circlestorm.org>
Date: Thu, 7 Jul 2016 13:41:52 +0000 (+0200)
Subject: Merge pull request #72 from mtl1979/duphead
X-Git-Tag: 1.9.9-b1~770
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=515fcf5ff87957dc867c872d5af1b209384a4288;p=thirdparty%2Fzlib-ng.git

Merge pull request #72 from mtl1979/duphead

Don't update prev if old head is same as new.
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515fcf5ff87957dc867c872d5af1b209384a4288