[vala/0.40] vapi: Update GIR-based bindings

[Rico Tzschichholz <ricotz src gnome org>]

commit 411fa2e1509b0b0ac9bcdf3b52c6887372fa928c
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Fri Apr 13 17:59:04 2018 +0200

    vapi: Update GIR-based bindings

 vapi/libgsf-1.vapi    |   12 ++++++------
 vapi/libsoup-2.4.vapi |    2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/vapi/libgsf-1.vapi b/vapi/libgsf-1.vapi
index 7fc0df7..71eb505 100644
--- a/vapi/libgsf-1.vapi
+++ b/vapi/libgsf-1.vapi
@@ -51,7 +51,7 @@ namespace Gsf {
                public unowned string? get_link ();
                public unowned string get_name ();
                public unowned GLib.Value? get_val ();
-               public void set_link (owned string link);
+               public void set_link (owned string? link);
                public void set_val (owned GLib.Value val);
                public GLib.Value? swap_val (owned GLib.Value val);
        }
@@ -117,9 +117,9 @@ namespace Gsf {
                public bool copy (Gsf.Output output);
                public void dump (bool dump_as_hex);
                [CCode (vfunc_name = "Dup")]
-               public virtual Gsf.Input dup () throws GLib.Error;
+               public virtual Gsf.Input? dup () throws GLib.Error;
                public static GLib.Quark error_id ();
-               public Gsf.InfileMSVBA find_vba () throws GLib.Error;
+               public Gsf.InfileMSVBA? find_vba () throws GLib.Error;
                public unowned GLib.DateTime get_modtime ();
                [CCode (cname = "gsf_input_mmap_new", has_construct_function = false)]
                public Input.mmap_new (string filename) throws GLib.Error;
@@ -318,9 +318,9 @@ namespace Gsf {
                protected Output ();
                [CCode (vfunc_name = "Close")]
                public virtual bool close ();
-               public unowned GLib.Error error ();
+               public unowned GLib.Error? error ();
                public static GLib.Quark error_id ();
-               public unowned GLib.DateTime get_modtime ();
+               public unowned GLib.DateTime? get_modtime ();
                public bool printf (string format, ...);
                public bool puts (string line);
                [CCode (vfunc_name = "Seek")]
@@ -545,7 +545,7 @@ namespace Gsf {
                public void add_int (string? id, int val);
                public void add_uint (string? id, uint val);
                public unowned string end_element ();
-               public unowned Gsf.Output get_output ();
+               public unowned Gsf.Output? get_output ();
                public bool get_pretty_print ();
                public void set_doc_type (string type);
                public bool set_pretty_print (bool pp);
diff --git a/vapi/libsoup-2.4.vapi b/vapi/libsoup-2.4.vapi
index 1e0e8fd..822f238 100644
--- a/vapi/libsoup-2.4.vapi
+++ b/vapi/libsoup-2.4.vapi
@@ -368,7 +368,7 @@ namespace Soup {
                [Version (since = "2.32")]
                public unowned string get_domain ();
                [Version (since = "2.32")]
-               public unowned Soup.Date get_expires ();
+               public unowned Soup.Date? get_expires ();
                [Version (since = "2.32")]
                public bool get_http_only ();
                [Version (since = "2.32")]