[glibmm] NEWS: Add requirement glib-2.0 >= 2.59.2

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 58ff0d8840477036a4945259177fa33d0c60abf6
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Tue Mar 19 10:55:24 2019 +0100

    NEWS: Add requirement glib-2.0 >= 2.59.2

 NEWS | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/NEWS b/NEWS
index c3ebb5f8..5c018af7 100644
--- a/NEWS
+++ b/NEWS
@@ -49,6 +49,8 @@ gmmproc:
 Build:
 * glibmmconfig.h.in: Remove unused configuration constants
   (Kjell Ahlstedt) Issue #22
+* Require glib-2.0 >= 2.59.2
+  (Kjell Ahlstedt)
 * Change the ABI to glibmm-2.62
   (Kjell Ahlstedt)