[gssdp] build: Add variable for vapi

[Jens Georg <jensgeorg src gnome org>]

commit 0d6ca5e72338e6a63c57fc3673253b3004ca81b6
Author: Jens Georg <mail jensge org>
Date:   Sat May 22 19:27:54 2021 +0200

    build: Add variable for vapi

 vala/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/vala/meson.build b/vala/meson.build
index 6cf3646..c26aca4 100644
--- a/vala/meson.build
+++ b/vala/meson.build
@@ -1,4 +1,4 @@
-gnome.generate_vapi('gssdp-1.2',
+vapi = gnome.generate_vapi('gssdp-1.2',
                     sources : gir.get(0),
                     packages : ['gio-2.0', 'libsoup-2.4'],
                     install : true)