[vala/0.38] webkit2gtk-4.0: Actually update to 2.18

[Rico Tzschichholz <ricotz src gnome org>]

commit b23e1af621cadbf9dcf1b219f23c9b1c58dd0d66
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Fri Oct 6 08:05:09 2017 +0200

    webkit2gtk-4.0: Actually update to 2.18

 vapi/webkit2gtk-4.0.vapi |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/vapi/webkit2gtk-4.0.vapi b/vapi/webkit2gtk-4.0.vapi
index a248675..adf4fc9 100644
--- a/vapi/webkit2gtk-4.0.vapi
+++ b/vapi/webkit2gtk-4.0.vapi
@@ -1092,7 +1092,7 @@ namespace WebKit {
                public virtual signal bool load_failed_with_tls_errors (string failing_uri, 
GLib.TlsCertificate certificate, GLib.TlsCertificateFlags errors);
                public virtual signal void mouse_target_changed (WebKit.HitTestResult hit_test_result, uint 
modifiers);
                [CCode (cname = "show-option-menu")]
-               [Version (since = "2.18.")]
+               [Version (since = "2.18")]
                public signal bool on_show_option_menu (WebKit.OptionMenu menu, Gdk.Event event, 
Gdk.Rectangle rectangle);
                public virtual signal bool permission_request (WebKit.PermissionRequest permission_request);
                public virtual signal bool print (WebKit.PrintOperation print_operation);