Github user witgo commented on the pull request:
https://github.com/apache/spark/pull/1069#issuecomment-45969396
@srowen If we use "-language:postfixOps" This
`scala.language.postfixOps` is not necessary. as proposed in the [SIP-18
document](https://docs.google.com/document/d/1nlkvpoIRkx7at1qJEZafJwthZ3GeIklTFhqmXMvTX9Q/edit).
@pwendell #1032 Remove duplicate `import scala.language.postfixOps`
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