GitHub user kiszk opened a pull request:
https://github.com/apache/spark/pull/22059
[SPARK-25036][SQL] Avoid discarding unmoored doc comment in Scala-2.12.
## What changes were proposed in this pull request?
This PR avoid the following compilation error using sbt in Scala-2.12.
```
[error] [warn]
/home/ishizaki/Spark/PR/scala212/spark/mllib/src/main/scala/org/apache/spark/ml/tree/impl/RandomForest.scala:410:
discarding unmoored doc comment
[error] [warn] /**
[error] [warn]
[error] [warn]
/home/ishizaki/Spark/PR/scala212/spark/mllib/src/main/scala/org/apache/spark/ml/tree/impl/RandomForest.scala:441:
discarding unmoored doc comment
[error] [warn] /**
[error] [warn]
...
[error] [warn]
/home/ishizaki/Spark/PR/scala212/spark/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala:440:
discarding unmoored doc comment
[error] [warn] /**
[error] [warn]
```
## How was this patch tested?
Existing UTs
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kiszk/spark SPARK-25036d
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/22059.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #22059
----
commit 70ec11e5b85100b0b10257f7c0846b63af1ba494
Author: Kazuaki Ishizaki <ishizaki@...>
Date: 2018-08-09T17:11:30Z
initial commit
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