[gnome-panel] separator: add missing include

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 53b59d6cf70b876de2169dca3aa630913e840cfa
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sat Dec 3 13:04:15 2016 +0200

    separator: add missing include

 modules/builtin/separator/separator-module.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/modules/builtin/separator/separator-module.c b/modules/builtin/separator/separator-module.c
index 80433e2..d0cc15d 100644
--- a/modules/builtin/separator/separator-module.c
+++ b/modules/builtin/separator/separator-module.c
@@ -21,6 +21,7 @@
 #include <libgnome-panel/gp-module.h>
 
 #include "separator-applet.h"
+#include "separator-module.h"
 
 static GpModuleInfo *
 separator_get_module_info (void)