Improve logs in checkNrisConsistency

Test: ConnectivityServiceTest
Change-Id: If5235443217ad4abbdd40e89d5721d4f7832d52f
diff --git a/service/src/com/android/server/ConnectivityService.java b/service/src/com/android/server/ConnectivityService.java
index 3bda264..9e88890 100644
--- a/service/src/com/android/server/ConnectivityService.java
+++ b/service/src/com/android/server/ConnectivityService.java
@@ -4047,7 +4047,8 @@
                     // Temporary help to debug b/194394697 ; TODO : remove this function when the
                     // bug is fixed.
                     dumpAllRequestInfoLogsToLogcat();
-                    throw new IllegalStateException("This NRI is already registered. " + nri);
+                    throw new IllegalStateException("This NRI is already registered. New : " + nri
+                            + ", existing : " + n);
                 }
             }
         }