[LOG4J2-2447] Let the NullAppender default its name to "null".
diff --git a/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/NullAppender.java b/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/NullAppender.java
index 82c7c3b..625df60 100644
--- a/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/NullAppender.java
+++ b/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/NullAppender.java
@@ -34,7 +34,7 @@
 
     @PluginFactory
     public static NullAppender createAppender(
-            @PluginAttribute(value = "smtpPort", defaultString = "null") final String name) {
+            @PluginAttribute(value = "name", defaultString = "null") final String name) {
         return new NullAppender(name);
     }