[vala/0.44] glib-2.0: DateTime.from_iso8601() can take a null TimeZone

[Rico Tzschichholz <ricotz src gnome org>]

commit d088c812cd9fb6b4c24b3eccc4db00d05f6cba96
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Wed Sep 18 02:24:21 2019 +0200

    glib-2.0: DateTime.from_iso8601() can take a null TimeZone

 vapi/glib-2.0.vapi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/vapi/glib-2.0.vapi b/vapi/glib-2.0.vapi
index d202117b6..ebdcac8b7 100644
--- a/vapi/glib-2.0.vapi
+++ b/vapi/glib-2.0.vapi
@@ -2981,7 +2981,7 @@ namespace GLib {
                public DateTime.now_local ();
                public DateTime.now_utc ();
                [Version (since = "2.56")]
-               public DateTime.from_iso8601 (string text, TimeZone default_tz);
+               public DateTime.from_iso8601 (string text, TimeZone? default_tz);
                public DateTime.from_unix_local (int64 t);
                public DateTime.from_unix_utc (int64 t);
                public DateTime.from_timeval_local (TimeVal tv);