[9] Review request for 8155690: Update libPNG library to the latest up-to-date

[Alexander Zvegintsev]

Hello,

please review the fix

https://bugs.openjdk.java.net/browse/JDK-8155690

for the issue

http://cr.openjdk.java.net/~azvegint/jdk/9/8155690/00/


--
--
Thanks,
Alexander.