[gnome-tetravex] Fix Meson required version.

[Arnaud B. <arnaudb src gnome org>]

commit c52109fa252650f515df318fdc6b51c174eef0e2
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Sat Oct 26 03:28:37 2019 +0200

    Fix Meson required version.

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index b7680ea..26809ce 100644
--- a/meson.build
+++ b/meson.build
@@ -5,7 +5,7 @@ project ('gnome-tetravex', ['vala', 'c'],
              'warning_level=1',
              'buildtype=debugoptimized',
          ],
-         meson_version: '>= 0.37.1')
+         meson_version: '>= 0.50.0')
 
 project_id = 'org.gnome.Tetravex'