Update SparkContext.scala

Author: pzzs

core/src/main/scala/org/apache/spark/SparkContext.scala

@@ -1092,9 +1092,8 @@ class SparkContext(config: SparkConf) extends Logging with ExecutorAllocationCli
    */
   def addFile(path: String, recursive: Boolean): Unit = {
     val uri = new URI(path)
-    val file = new File(path)
     val schemeCorrectedPath = uri.getScheme match {
-      case null | "local" => "file:" + file.getCanonicalPath
+      case null | "local" => "file:" + new File(path).getCanonicalPath
       case _              => path
     }