diff -ur root-6.16.00.orig/tutorials/v7/line.cxx root-6.16.00/tutorials/v7/line.cxx
--- root-6.16.00.orig/tutorials/v7/line.cxx 2019-01-23 09:23:37.000000000 +0100
+++ root-6.16.00/tutorials/v7/line.cxx 2019-05-17 11:02:14.378664352 +0200
@@ -6,7 +6,6 @@
/// "normal" coordinates' system and changing the line color linearly from black
/// to red.
///
-/// \macro_image (line.png)
/// \macro_code
///
/// \date 2018-03-18