[sysprof] build: require meson 0.50

[Christian Hergert <chergert src gnome org>]

commit d13f22416f30d59b5e328d355aa32707410fa6e6
Author: Christian Hergert <chergert redhat com>
Date:   Wed Sep 4 15:16:31 2019 -0700

    build: require meson 0.50
    
    Keep this a bit more modern so that we afford ourselves some additional
    features during micro releases.

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index d0d08a1..e41af35 100644
--- a/meson.build
+++ b/meson.build
@@ -1,7 +1,7 @@
 project('sysprof', ['c', 'cpp'],
         license: ['GPL3+', 'GPL2+'],
         version: '3.33.90',
-  meson_version: '>=0.49.0',
+  meson_version: '>=0.50.0',
   default_options: [ 'c_std=gnu11',
                      'cpp_std=c++11',
                      'warning_level=2',