all DOC trailing space
diff --git a/src/messages_client.h b/src/messages_client.h
index 6163800..6d5eca0 100644
--- a/src/messages_client.h
+++ b/src/messages_client.h
@@ -9,7 +9,7 @@
  * This source code is licensed under BSD 3-Clause License (the "License").
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *     https://opensource.org/licenses/BSD-3-Clause
  */