YARN-2194. Addendum patch to fix failing unit test in TestPrivilegedOperationExecutor. Contributed by Sidharta Seethana.

(cherry picked from ad5b904175a1f89951c7c32f744a4e20fafb51b5)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/TestPrivilegedOperationExecutor.java

@@ -217,8 +217,10 @@ public class TestPrivilegedOperationExecutor {
           .squashCGroupOperations(ops);
       String expected = new StringBuffer
           (PrivilegedOperation.CGROUP_ARG_PREFIX)
-          .append(cGroupTasks1).append(',')
-          .append(cGroupTasks2).append(',')
+          .append(cGroupTasks1).append(PrivilegedOperation
+              .LINUX_FILE_PATH_SEPARATOR)
+          .append(cGroupTasks2).append(PrivilegedOperation
+              .LINUX_FILE_PATH_SEPARATOR)
           .append(cGroupTasks3).toString();
 
       //We expect axactly one argument