[gnome-contacts] Fix the valadoc build.

[Niels De Graef <nielsdg src gnome org>]

commit 1b738cec18c159a71334f6563ad0f197e675d2cb
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Wed Oct 31 19:58:05 2018 +0100

    Fix the valadoc build.
    
    This was broken after splitting of a separate library for testing
    purposes.
    
    Fixes #108.

 docs/meson.build | 3 ++-
 src/meson.build  | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/docs/meson.build b/docs/meson.build
index 4a77608..54dfbd8 100644
--- a/docs/meson.build
+++ b/docs/meson.build
@@ -16,11 +16,12 @@ custom_target('docs',
     '--pkg=folks',
     '--pkg=folks-eds',
     '--pkg=libedataserverui-1.2',
+    '--pkg=libhandy-0.0',
     '--pkg=custom',
     '--pkg=config',
     '--vapidir=@0@'.format(join_paths(meson.source_root(), 'vapi')),
     '--directory=@OUTDIR@',
-    contacts_vala_sources,
+    [ libcontacts_sources, contacts_vala_sources ],
   ],
   build_by_default: true,
 )
diff --git a/src/meson.build b/src/meson.build
index 9738386..d7f8439 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -5,14 +5,14 @@ install_data('org.gnome.Contacts.gschema.xml',
 )
 
 # Common library
-libcontacts_sources = [
+libcontacts_sources = files(
   'contacts-contact.vala',
   'contacts-esd-setup.vala',
   'contacts-im-service.vala',
   'contacts-store.vala',
   'contacts-typeset.vala',
   'contacts-utils.vala',
-]
+)
 
 contacts_vala_args = [
   '--target-glib=@0@'.format(min_glib_version),