[gnome-tetravex] Small improvement to CLI.

[Arnaud B. <arnaudb src gnome org>]

commit 00d7498f52df43a60a1c9e786e626e64ddbe52f1
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Fri Nov 8 23:04:47 2019 +0100

    Small improvement to CLI.

 src/cli.vala | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/src/cli.vala b/src/cli.vala
index a8dc928..d8dc122 100644
--- a/src/cli.vala
+++ b/src/cli.vala
@@ -220,9 +220,9 @@ namespace CLI
             {
                 Tile? tile = puzzle.get_tile (x, y);
                 if (tile == null)
-                    stdout.printf (" ┌─ ─┐");
+                    stdout.printf (" ┌╴ ╶┐");
                 else
-                    stdout.printf (@" ┌─$(((!) tile).north)─┐");
+                    stdout.printf (@" ┌╴$(((!) tile).north)╶┐");
                 if (x == size - 1)
                     stdout.printf ("  ");
             }
@@ -242,9 +242,9 @@ namespace CLI
             {
                 Tile? tile = puzzle.get_tile (x, y);
                 if (tile == null)
-                    stdout.printf (" └─ ─┘");
+                    stdout.printf (" └╴ ╶┘");
                 else
-                    stdout.printf (@" └─$(((!) tile).south)─┘");
+                    stdout.printf (@" └╴$(((!) tile).south)╶┘");
                 if (x == size - 1)
                     stdout.printf ("  ");
             }