minor

Author: yucai

external/avro/src/test/scala/org/apache/spark/sql/execution/benchmark/AvroWriteBenchmark.scala

@@ -22,9 +22,9 @@ package org.apache.spark.sql.execution.benchmark
  * To run this benchmark:
  * {{{
  *   1. without sbt: bin/spark-submit --class <this class>
- *        --jars <spark core test jar>,<spark catalyst test jar>
- *        --packages org.apache.spark:spark-avro_<scala binary version>:<spark version short>
- *        <spark sql test jar>
+ *        --jars <spark core test jar>,<spark catalyst test jar>,
+  *              <spark sql test jar>,<spark avro jar>
+ *        <spark avro test jar>
  *   2. build/sbt "sql/test:runMain <this class>"
  *   3. generate result: SPARK_GENERATE_BENCHMARK_FILES=1 build/sbt "avro/test:runMain <this class>"
  *      Results will be written to "benchmarks/AvroWriteBenchmark-results.txt".