Fix two misc javadoc problems

Author: srowen

bagel/src/main/scala/org/apache/spark/bagel/Bagel.scala

@@ -43,7 +43,7 @@ object Bagel extends Logging {
    *                      Default is the default parallelism of the SparkContext
    * @param storageLevel org.apache.spark.storage.StorageLevel to use for caching of
    *                    intermediate RDDs in each superstep. Defaults to caching in memory.
-   *@param compute function that takes a Vertex, optional set of (possibly combined) messages to
+   * @param compute function that takes a Vertex, optional set of (possibly combined) messages to
    *                the Vertex, optional Aggregator and the current superstep,
    *                and returns a set of (Vertex, outgoing Messages) pairs
    * @tparam K key

core/src/main/scala/org/apache/spark/scheduler/JobLogger.scala

@@ -81,7 +81,7 @@ class JobLogger(val user: String, val logDirName: String)
   /**
    * Create a log file for one job
    * @param jobID ID of the job
-   * @exception FileNotFoundException Fail to create log file
+   * @throws FileNotFoundException Fail to create log file
    */
   protected def createLogWriter(jobID: Int) {
     try {