[sysprof] build: add missing page to help

[Piotr Drąg <piotrdrag src gnome org>]

commit 00887d75db8eac019366021b4ac61401557a9d2d
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Sep 16 03:06:36 2017 +0200

    build: add missing page to help

 help/meson.build |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/meson.build b/help/meson.build
index 5472656..30e16a3 100644
--- a/help/meson.build
+++ b/help/meson.build
@@ -1,4 +1,4 @@
 gnome.yelp('sysprof',
-  ['index.page', 'introduction.page', 'legal.xml', 'profiling.page'],
+  sources: ['index.page', 'introduction.page', 'profiling.page', 'faq.page', 'legal.xml'],
   languages: ['cs', 'de', 'pl', 'pt_BR', 'sv'],
 )