[glib] gmessage: Suppress string format literal warning

[Matthias Clasen <matthiasc src gnome org>]

commit d3111779481a7a3917338c86b6cb8d26b06f5a33
Author: Víctor Manuel Jáquez Leal <vjaquez igalia com>
Date:   Thu Jul 21 11:46:55 2016 +0200

    gmessage: Suppress string format literal warning
    
    https://bugzilla.gnome.org/show_bug.cgi?id=769029

 glib/gmessages.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/glib/gmessages.c b/glib/gmessages.c
index 75e0e87..e64c268 100644
--- a/glib/gmessages.c
+++ b/glib/gmessages.c
@@ -1293,6 +1293,9 @@ color_reset (gboolean use_color)
   return "\033[0m";
 }
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
+
 /**
  * g_log_structured:
  * @log_domain: log domain, usually %G_LOG_DOMAIN
@@ -1473,6 +1476,8 @@ g_log_structured (const gchar    *log_domain,
   va_end (args);
 }
 
+#pragma GCC diagnostic pop
+
 static GLogWriterOutput _g_log_writer_fallback (GLogLevelFlags   log_level,
                                                 const GLogField *fields,
                                                 gsize            n_fields,