[gnome-tetravex] Another small improvement to CLI.

[Arnaud B. <arnaudb src gnome org>]

commit 27a27701a5bd932e7c042a39ba69d5edecfe012b
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Fri Nov 8 23:18:32 2019 +0100

    Another small improvement to CLI.

 src/cli.vala | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/cli.vala b/src/cli.vala
index d8dc122..4443952 100644
--- a/src/cli.vala
+++ b/src/cli.vala
@@ -220,7 +220,7 @@ namespace CLI
             {
                 Tile? tile = puzzle.get_tile (x, y);
                 if (tile == null)
-                    stdout.printf (" ┌╴ ╶┐");
+                    stdout.printf (" ╭╴ ╶╮");
                 else
                     stdout.printf (@" ┌╴$(((!) tile).north)╶┐");
                 if (x == size - 1)
@@ -242,7 +242,7 @@ namespace CLI
             {
                 Tile? tile = puzzle.get_tile (x, y);
                 if (tile == null)
-                    stdout.printf (" └╴ ╶┘");
+                    stdout.printf (" ╰╴ ╶╯");
                 else
                     stdout.printf (@" └╴$(((!) tile).south)╶┘");
                 if (x == size - 1)