[babl] babl: fix bad relative include

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 6b032aac30f798ff98731f3bdc85538b42c17147
Author: Øyvind Kolås <pippin gimp org>
Date:   Sat Nov 24 04:13:24 2018 +0100

    babl: fix bad relative include

 babl/babl-space.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/babl/babl-space.h b/babl/babl-space.h
index 92926ba..bbf0c42 100644
--- a/babl/babl-space.h
+++ b/babl/babl-space.h
@@ -19,7 +19,7 @@
 #ifndef _BABL_SPACE_H
 #define _BABL_SPACE_H
 
-#include "../config.h"
+#include "config.h"
 #include <math.h>
 #include <string.h>
 #include "base/util.h"