[sysprof] build: relax GLib requirement to 2.56

[Christian Hergert <chergert src gnome org>]

commit 454b192a19bf4fb540b9d0f0e934e586e3526761
Author: Christian Hergert <chergert redhat com>
Date:   Thu Feb 20 11:05:25 2020 -0800

    build: relax GLib requirement to 2.56

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index b5590b2..3bbd883 100644
--- a/meson.build
+++ b/meson.build
@@ -18,7 +18,7 @@ datadir = get_option('datadir')
 datadir_for_pc_file = join_paths('${prefix}', datadir)
 podir = join_paths(meson.source_root(), 'po')
 
-glib_req_version = '>= 2.61.3'
+glib_req_version = '>= 2.56'
 gtk_req_version = '>= 3.22'
 polkit_req_version = '>= 0.105'
 dazzle_req_version = '>= 3.30.0'