[gnome-shell/gnome-3-20] calendar-server: Add back missing return value

[Florian Müllner <fmuellner src gnome org>]

commit 890a1f112b62d95678f765f71013ee4c2c68ab88
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Jul 25 18:46:59 2016 +0200

    calendar-server: Add back missing return value
    
    In commit 7e0e224e0, when moving from e_cal_recur_generate_instances()
    to e_cal_client_generate_instances(), the return value of the
    ECalRecurInstanceFn callback was accidentally removed; add it
    back.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=769156

 src/calendar-server/gnome-shell-calendar-server.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/calendar-server/gnome-shell-calendar-server.c 
b/src/calendar-server/gnome-shell-calendar-server.c
index 5ff12f2..57bc71b 100644
--- a/src/calendar-server/gnome-shell-calendar-server.c
+++ b/src/calendar-server/gnome-shell-calendar-server.c
@@ -443,6 +443,8 @@ generate_instances_cb (ECalComponent *comp,
   occurrence->rid        = e_cal_component_get_recurid_as_string (comp);
 
   appointment->occurrences = g_slist_append (appointment->occurrences, occurrence);
+
+  return TRUE;
 }