Improve ASCII art.

The original rendering eats the leading spaces, see
https://www.dealii.org/developer/doxygen/deal.II/step_42.html#PlasticityContactProblemmake_grid
The patch adds something at the front that ensures that this doesn't
happen. It's not pretty, but it works.

diff --git a/examples/step-42/step-42.cc b/examples/step-42/step-42.cc
index 1453429020ab3a67cfc1939bd5ff07219105df7e..9b276315d0851438c9b0465f200e8d23a6d0f563 100644 (file)
--- a/examples/step-42/step-42.cc
+++ b/examples/step-42/step-42.cc
@@ -918,13 +918,13 @@ namespace Step42
     // Alternatively, create a hypercube mesh. After creating it,
     // assign boundary indicators as follows:
     // @code
-    //    _______
-    //   /  1    /|
-    //  /______ / |
-    // |       | 8|
-    // |   8   | /
-    // |_______|/
-    //     6
+    // >     _______
+    // >    /  1    /|
+    // >   /______ / |
+    // >  |       | 8|
+    // >  |   8   | /
+    // >  |_______|/
+    // >      6
     // @endcode
     // In other words, the boundary indicators of the sides of the cube are 8.
     // The boundary indicator of the bottom is 6 and the top has indicator 1.