[vala] glib-2.0: Some nullable arguments in GLib.Test.*

[Rico Tzschichholz <ricotz src gnome org>]

commit b18a7797919cea53ee546c44c9e6d731c34b3db2
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed Oct 19 09:16:37 2016 +0200

    glib-2.0: Some nullable arguments in GLib.Test.*
    
    https://bugzilla.gnome.org/show_bug.cgi?id=772964

 vapi/glib-2.0.vapi |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/vapi/glib-2.0.vapi b/vapi/glib-2.0.vapi
index 27f7a2c..dc9ffbe 100644
--- a/vapi/glib-2.0.vapi
+++ b/vapi/glib-2.0.vapi
@@ -4252,7 +4252,7 @@ namespace GLib {
                [Version (since = "2.38")]
                public static unowned string get_filename (GLib.Test.FileType file_type, params string[] 
path_segments);
                [Version (since = "2.38")]
-               public static void incomplete (string msg);
+               public static void incomplete (string? msg = null);
                [Version (since = "2.36")]
                public static bool initialized ();
                [PrintfFormat]
@@ -4261,7 +4261,7 @@ namespace GLib {
                [Version (since = "2.38")]
                public static void set_nonfatal_assertions ();
                [Version (since = "2.38")]
-               public static void skip (string msg);
+               public static void skip (string? msg = null);
                [Version (since = "2.38")]
                public static bool subprocess ();
                [Version (since = "2.16")]
@@ -4281,7 +4281,7 @@ namespace GLib {
                [Version (since = "2.16")]
                public static bool trap_reached_timeout ();
                [Version (since = "2.38")]
-               public static void trap_subprocess (string test_path, uint64 usec_timeout, 
TestSubprocessFlags test_flags);
+               public static void trap_subprocess (string? test_path, uint64 usec_timeout, 
TestSubprocessFlags test_flags);
                [Version (since = "2.16")]
                public static void trap_assert_passed ();
                [Version (since = "2.16")]