[libsoup] meson: Enable vapi by default

[Claudio Saavedra <csaavedra src gnome org>]

commit c9cce9ca776e253cdcb253ce4428f760ba2c6931
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Sat Sep 29 20:37:21 2018 -0400

    meson: Enable vapi by default
    
    Closes: https://gitlab.gnome.org/GNOME/libsoup/issues/119

 meson_options.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson_options.txt b/meson_options.txt
index 35474caa..774e8777 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -42,7 +42,7 @@ option('introspection',
 
 option('vapi',
   type : 'boolean',
-  value : false,
+  value : true,
   description : 'Build Vala bindings'
 )