YARN-11534. Removed blank line endings

Change-Id: I4933b6102a3bd283206ce9980ad037e750eef4a7

Author: p-szucs

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.java

@@ -87,7 +87,7 @@ public String getOutput() {
   public String getErrorOutput() {
     return errorOutput;
   }
-  
+
   public static int getDefaultExitCode() {
     return EXIT_CODE_UNSET;
   }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/TestLinuxContainerExecutor.java

@@ -759,12 +759,12 @@ public void testSignalContainerFailureWhenExitCodeIsNotPresentInTheException()
     ContainerSignalContext signalContext = new ContainerSignalContext.Builder().build();
     ContainerExecutionException testException =
         new ContainerExecutionException("exceptionWithoutExitCode");
-    
+
     doNothing().when(containerExecutor).verifyUsernamePattern(any());
     doThrow(testException)
         .when(containerRuntime)
         .signalContainer(any(ContainerRuntimeContext.class));
-    
+
     assertThrows(InterruptedIOException.class,
         () -> containerExecutor.signalContainer(signalContext));
   }