Merge branch 'LOG4J2-2832' of https://github.com/asbachb/logging-log4j2 into asbachb-LOG4J2-2832
diff --git a/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/RollingFileAppender.java b/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/RollingFileAppender.java
index 0a5805d..5849d79 100644
--- a/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/RollingFileAppender.java
+++ b/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/RollingFileAppender.java
@@ -134,7 +134,7 @@
                                         .build();
                 }
             } else if (fileName == null && !(strategy instanceof DirectFileRolloverStrategy)) {
-                LOGGER.error("RollingFileAppender '{}': When no file name is provided a DirectFilenameRolloverStrategy must be configured", getName());
+                LOGGER.error("RollingFileAppender '{}': When no file name is provided a {} must be configured", getName(), DirectFileRolloverStrategy.class.getSimpleName());
                 return null;
             }