diff -r e18884bbad48 -r f9ba63fc6a80 ucx/utils.h
--- a/ucx/utils.h	Wed Sep 07 12:41:30 2016 +0200
+++ b/ucx/utils.h	Thu Sep 08 12:04:01 2016 +0200
@@ -48,7 +48,10 @@
 #include <inttypes.h>
 #include <string.h>
 #include <stdarg.h>
-    
+
+/**
+ * Default buffer size for ucx_stream_copy() and ucx_stream_ncopy().
+ */
 #define UCX_STREAM_COPY_BUFSIZE 4096
 
 /**