[tracker] meson: Fix misspelled keyword arg

[Sam Thursfield <sthursfield src gnome org>]

commit 449f23b61f51a03e9955b50158cd04848b201c97
Author: Sam Thursfield <sam thursfield codethink co uk>
Date:   Thu Sep 28 16:55:04 2017 +0100

    meson: Fix misspelled keyword arg

 src/libtracker-data/meson.build |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/libtracker-data/meson.build b/src/libtracker-data/meson.build
index 3230e82..58efd2c 100644
--- a/src/libtracker-data/meson.build
+++ b/src/libtracker-data/meson.build
@@ -74,5 +74,5 @@ tracker_data_dep = declare_dependency(
     link_with: [libtracker_data, libtracker_data_vala],
     dependencies: tracker_data_dependencies,
     include_directories: include_directories('.'),
-    source: enums[1],
+    sources: enums[1],
 )