Remove trailing white spaces on all lines.

Author: garydgregory

src/test/java/org/apache/commons/io/FileCleaningTrackerTestCase.java

@@ -43,7 +43,7 @@
  * @see FileCleaningTracker
  */
 public class FileCleaningTrackerTestCase {
-    
+
     @Rule
     public TemporaryFolder temporaryFolder = new TemporaryFolder();
 

src/test/java/org/apache/commons/io/FileUtilsCleanDirectoryTestCase.java

@@ -36,7 +36,7 @@
  *
  */
 public class FileUtilsCleanDirectoryTestCase {
-    
+
     @ClassRule
     public static TemporaryFolder temporaryFolder = new TemporaryFolder();