Github user srowen commented on the issue:
https://github.com/apache/spark/pull/22048
Have a look at the test results, which show the style problem it flags:
https://amplab.cs.berkeley.edu/jenkins/job/NewSparkPullRequestBuilder/4305/console
```
[error]
/home/jenkins/workspace/NewSparkPullRequestBuilder@2/core/src/main/scala/org/apache/spark/util/Utils.scala:2803:4:
nonascii.message
[error]
/home/jenkins/workspace/NewSparkPullRequestBuilder@2/core/src/main/scala/org/apache/spark/util/Utils.scala:2804:4:
nonascii.message
[error]
/home/jenkins/workspace/NewSparkPullRequestBuilder@2/core/src/main/scala/org/apache/spark/util/Utils.scala:2805:4:
nonascii.message
[error]
/home/jenkins/workspace/NewSparkPullRequestBuilder@2/core/src/main/scala/org/apache/spark/util/Utils.scala:2806:4:
nonascii.message
[error]
/home/jenkins/workspace/NewSparkPullRequestBuilder@2/core/src/main/scala/org/apache/spark/util/Utils.scala:2807:4:
nonascii.message
[error]
/home/jenkins/workspace/NewSparkPullRequestBuilder@2/core/src/main/scala/org/apache/spark/util/Utils.scala:2808:4:
nonascii.message
[error]
/home/jenkins/workspace/NewSparkPullRequestBuilder@2/core/src/main/scala/org/apache/spark/util/Utils.scala:2809:4:
nonascii.message
[error]
/home/jenkins/workspace/NewSparkPullRequestBuilder@2/core/src/main/scala/org/apache/spark/util/Utils.scala:2810:4:
nonascii.message
```
So it doesn't like non-ASCII chars after all! I wonder how they exist in
the other parts of the source. I checked and other parts just disable the check
for sections of code where it's appropriate to use unicode chars.
Just wrap these parts of the code in:
```
// scalastyle:off nonascii
...
// scalastyle:on nonascii
```
Sorry, didn't know this was needed.
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