Travis failure looks legitimate
```
[ERROR]
/home/travis/build/apache/incubator-druid/extensions-core/datasketches/src/main/java/org/apache/druid/query/aggregation/datasketches/RawInputValueExtractor.java:25:71:
'{' at column 71 should be on a new line. [LeftCurly]
[ERROR]
/home/travis/build/apache/incubator-druid/extensions-core/datasketches/src/main/java/org/apache/druid/query/aggregation/datasketches/RawInputValueExtractor.java:31:54:
'{' at column 54 should be on a new line. [LeftCurly]
Audit done.
```
[ Full content available at:
https://github.com/apache/incubator-druid/pull/5712 ]
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