[pango] Bump meson req to 0.50

[Matthias Clasen <matthiasc src gnome org>]

commit 25a7353bd0649609778f61594be35eee6b7f006d
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Aug 13 10:55:45 2019 -0400

    Bump meson req to 0.50

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 78269eba..723d791a 100644
--- a/meson.build
+++ b/meson.build
@@ -8,7 +8,7 @@ project('pango', 'c', 'cpp',
           # https://github.com/mesonbuild/meson/issues/2289
           'c_std=gnu99',
         ],
-        meson_version : '>= 0.48.0')
+        meson_version : '>= 0.50.0')
 
 add_project_arguments([ '-D_POSIX_C_SOURCE=200809L', '-D_POSIX_THREAD_SAFE_FUNCTIONS', '-D_GNU_SOURCE', ], 
language: 'c')