spark git commit: [SPARK-12386][CORE] Fix NPE when spark.executor.port is set.

Repository: spark Updated Branches: refs/heads/branch-1.6 154567dca -> 4ad08035d [SPARK-12386][CORE] Fix NPE when spark.executor.port is set. Author: Marcelo Vanzin Closes #10339 from vanzin/SPARK-12386. (cherry picked from commit

spark git commit: [SPARK-12386][CORE] Fix NPE when spark.executor.port is set.

Repository: spark Updated Branches: refs/heads/master fdb382275 -> d1508dd9b [SPARK-12386][CORE] Fix NPE when spark.executor.port is set. Author: Marcelo Vanzin Closes #10339 from vanzin/SPARK-12386. Project: http://git-wip-us.apache.org/repos/asf/spark/repo Commit: