fix comments

Author: kellyzly

core/src/main/scala/org/apache/spark/broadcast/TorrentBroadcast.scala

@@ -99,7 +99,8 @@ private[spark] class TorrentBroadcast[T: ClassTag](obj: T, id: Long)
   private def calcChecksum(block: ByteBuffer): Int = {
     val adler = new Adler32()
     if (block.hasArray) {
-      adler.update(block.array, block.arrayOffset + block.position(), block.limit() - block.position())
+      adler.update(block.array, block.arrayOffset + block.position(), block.limit()
+        - block.position())
     } else {
       val bytes = new Array[Byte](block.remaining())
       block.duplicate.get(bytes)

sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/ScriptTransformationExec.scala

@@ -412,9 +412,9 @@ case class HiveScriptIOSchema (
     propsMap = propsMap + (serdeConstants.LIST_COLUMN_TYPES -> columnTypesNames)
 
     val properties = new Properties()
-    // properties.putAll(propsMap.asJava)
-    // see https://github.com/apache/kafka/pull/3647
-    propsMap.foreach{ case (k, v) => properties.put(k, v) }
+    // Can not use properties.putAll(propsMap.asJava) in scala-2.12
+    // See https://github.com/scala/bug/issues/10418
+    propsMap.foreach { case (k, v) => properties.put(k, v) }
     serde.initialize(null, properties)
 
     serde
@@ -426,8 +426,8 @@ case class HiveScriptIOSchema (
     recordReaderClass.map { klass =>
       val instance = Utils.classForName(klass).newInstance().asInstanceOf[RecordReader]
       val props = new Properties()
-      // props.putAll(outputSerdeProps.toMap.asJava)
-      // see https://github.com/apache/kafka/pull/3647
+      // Can not use props.putAll(outputSerdeProps.toMap.asJava) in scala-2.12
+      // See https://github.com/scala/bug/issues/10418
       outputSerdeProps.toMap.foreach { case (k, v) => props.put(k, v) }
       instance.initialize(inputStream, conf, props)
       instance