RFR: 8228778: JDK 13 L10n resource files update - msg drop 20

[li.jiang at oracle.com]

Hi,

Please help to review the update of L10n resource files in JDK13 msg 
drop 20.

Bug: https://bugs.openjdk.java.net/browse/JDK-8228778
Webrev: http://cr.openjdk.java.net/~ljiang/8228778/webrev/read/

Thanks,
Leo