[9] RFR: 8138663: Missing @build in test/java/text/Format/DecimalFormat/RoundingAndPropertyTest.java

[Masayoshi Okutsu]

Hello,

Please review this simple fix for 8138663. RoundingAndPropertyTest.java 
uses golden data classes which are not recomplied when updated.

Bug: https://bugs.openjdk.java.net/browse/JDK-8138663
Webrev: http://cr.openjdk.java.net/~okutsu/9/8138663/webrev.00

Thanks,
Masayoshi