Fix incorrect comment in Queue.Dequeue (#34006)

The comment in front of System.Collections.Queue.Dequeue() changed to
match actual routine behavior.

diff --git a/src/libraries/System.Collections.NonGeneric/src/System/Collections/Queue.cs b/src/libraries/System.Collections.NonGeneric/src/System/Collections/Queue.cs
index 5dbb967..890d83e 100644 (file)
--- a/src/libraries/System.Collections.NonGeneric/src/System/Collections/Queue.cs
+++ b/src/libraries/System.Collections.NonGeneric/src/System/Collections/Queue.cs
@@ -182,7 +182,7 @@ namespace System.Collections
         }
 
         // Removes the object at the head of the queue and returns it. If the queue
-        // is empty, this method simply returns null.
+        // is empty, this method throws an InvalidOperationException.
         public virtual object? Dequeue()
         {
             if (Count == 0)