[gtk/matthiasc/for-master] Add g_intern_static_string to valgrind suppressions

[Matthias Clasen <matthiasc src gnome org>]

commit ed0216ee1ac3df9328dc71707239eb0cb64264f5
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Jun 28 11:58:25 2020 -0400

    Add g_intern_static_string to valgrind suppressions
    
    That function can also trigger a quark table reallocation.

 gtk.supp | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/gtk.supp b/gtk.supp
index 87ce6d2ec6..56ec710493 100644
--- a/gtk.supp
+++ b/gtk.supp
@@ -269,3 +269,11 @@
   ...
   fun:g_quark_*
 }
+{
+  glib GQuark
+  Memcheck:Leak
+  match-leak-kinds: definite
+  fun:malloc
+  ...
+  fun:g_intern_static_string
+}