[rpm-ostree-toolbox] Readd accidentally dropped BR

[Colin Walters]

commit 34883a7f848c91fa0b151b1fa4a63b035fe9b4f6
Author: Colin Walters <walters at verbum.org>
Date:   Fri May 30 21:15:11 2014 -0400

    Readd accidentally dropped BR

 rpm-ostree-toolbox.spec |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/rpm-ostree-toolbox.spec b/rpm-ostree-toolbox.spec
index 284f511..4cdf08a 100644
--- a/rpm-ostree-toolbox.spec
+++ b/rpm-ostree-toolbox.spec
@@ -17,6 +17,7 @@ BuildRequires: gtk-doc
 BuildRequires: gnome-common
 BuildRequires: pkgconfig(ostree-1)
 BuildRequires: pkgconfig(libgsystem)
+BuildRequires: pkgconfig(json-glib-1.0)
 
 Requires: gjs
 Requires: libguestfs-tools-c