[8u-dev] Request for approval: 8163145: Remove two "null" lines in the end of message.properties

[Leo Jiang]

Hi,

JDK9 bug: https://bugs.openjdk.java.net/browse/JDK-8163145
webrev: http://cr.openjdk.java.net/~fyuan/leo/8163145/
review thread: http://mail.openjdk.java.net/pipermail/jdk9-dev/2016-August/004580.html

JDK9 changeset: http://hg.openjdk.java.net/jdk9/jdk9/jaxp/rev/55f2b1691a7b

This fix cleanup the two lines with text "null" in message.properties.

Thanks,
Leo