[SPARK-14845][SPARK_SUBMIT][YARN] spark.files in properties file is n… #12656
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What changes were proposed in this pull request?
initialize SparkSubmitArgument#files first from spark-submit arguments then from properties file, so that sys property spark.yarn.dist.files will be set correctly.
How was this patch tested?
manul test. file defined in properties file is also distributed to driver in yarn-cluster mode.