Remove trailing whitespaces

Author: agilelab-tmnd1991

hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Constants.java

@@ -1365,8 +1365,8 @@ private Constants() {
   /**
    * To use the same classloader that loaded S3AFileSystem to al
    * load the user extensions, such as {{fs.s3a.aws.credentials.provider}}.
-   * It is useful to turn this off for Apache Spark applications that 
-   * might load S3AFileSystem from the Spark distribution (Launcher classloader) 
+   * It is useful to turn this off for Apache Spark applications that
+   * might load S3AFileSystem from the Spark distribution (Launcher classloader)
    * while users might want to provide custom extensions (loaded by Spark MutableClassloader).
    * Default value: true.
    */