[libappstream-glib] trivial: Fix BRs

[Richard Hughes]

commit e48e3187a7538668b8e20b3a9bfecf4224ce1a10
Author: Richard Hughes <richard at hughsie.com>
Date:   Tue Oct 21 15:05:01 2014 +0100

    trivial: Fix BRs

 libappstream-glib.spec |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/libappstream-glib.spec b/libappstream-glib.spec
index d527daf..3c24869 100644
--- a/libappstream-glib.spec
+++ b/libappstream-glib.spec
@@ -21,6 +21,7 @@ BuildRequires: intltool
 # for the builder component
 BuildRequires: fontconfig-devel
 BuildRequires: freetype-devel
+BuildRequires: gtk3-devel
 BuildRequires: pango-devel
 BuildRequires: rpm-devel
 BuildRequires: sqlite-devel