hg: jdk/client: 8243674: Remove language tag length limit for iTXt chunk in PNGImageReader

[jayathirth.d.v at oracle.com]

Changeset: a9c2a670bae3
Author:    jdv
Date:      2020-08-03 17:27 +0530
URL:       https://hg.openjdk.java.net/jdk/client/rev/a9c2a670bae3

8243674: Remove language tag length limit for iTXt chunk in PNGImageReader
Reviewed-by: prr, serb

! src/java.desktop/share/classes/com/sun/imageio/plugins/png/PNGImageReader.java
+ test/jdk/javax/imageio/plugins/png/ReadLongLanguageTagTest.java