8292636: (dc) Problem listing of java/nio/channels/DatagramChannel/Unref.java has incorrect issue ID

Backport-of: 5ca268ca65f3619139abeddd1070306db406ccc1

Author: GoeLin

test/jdk/ProblemList.txt

@@ -597,7 +597,7 @@ java/net/ServerSocket/AcceptInheritHandle.java                  8211854 aix-ppc6
 
 # jdk_nio
 
-java/nio/channels/DatagramChannel/Unref.java                    8233519 generic-all
+java/nio/channels/DatagramChannel/Unref.java                    8233437 generic-all
 
 java/nio/channels/AsynchronousSocketChannel/StressLoopback.java 8211851 aix-ppc64