[pango/serializer2: 3/3] Improve valgrind suppressions

[Matthias Clasen <matthiasc src gnome org>]

commit 70dd77e4eb21bb84b9074b703d3b37cfe567569f
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Nov 18 13:57:06 2021 -0500

    Improve valgrind suppressions
    
    Also suppress pango_language_from_string and
    GLib thread creation.

 pango.supp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
---
diff --git a/pango.supp b/pango.supp
index 98450af4..9b542534 100644
--- a/pango.supp
+++ b/pango.supp
@@ -19,6 +19,14 @@
   fun:_cairo_ft_font_options_substitute
 }
 
+{
+  pango 3
+  Memcheck:Leak
+  fun:calloc
+  ...
+  fun:pango_language_from_string
+}
+
 # Fontconfig
 {
    FcFontSetList
@@ -84,6 +92,13 @@
   ...
   fun:g_intern_static_string
 }
+{
+  glib GThread
+  Memcheck:Leak
+  fun:calloc
+  ...
+  fun:g_thread_new_internal
+}
 
 # libthai
 {