[gnome-packagekit] Bump GTK+ dep to a new-enough version

[Matthias Clasen <matthiasc src gnome org>]

commit 410194e95a1ca5b04f45448254c4c92e87539e2e
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Dec 17 14:22:08 2014 -0500

    Bump GTK+ dep to a new-enough version
    
    gtk_text_buffer_insert_markup appeared in 3.15.3

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 57951ed..86b25b5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -97,7 +97,7 @@ PKG_CHECK_MODULES(DBUS, \
  dbus-1 >= 1.1.2 \
  gthread-2.0)
 PKG_CHECK_MODULES(GTK, \
- gtk+-3.0 >= 3.15.2 gdk-3.0 fontconfig)
+ gtk+-3.0 >= 3.15.3 gdk-3.0 fontconfig)
 PKG_CHECK_MODULES(CANBERRA, libcanberra-gtk3 >= 0.10)
 PKG_CHECK_MODULES(X11, x11)