[gimp] app: don't use a NULL blurb for GimpCoreConfig::mypaint-brush-path-writable

[Michael Natterer <mitch src gnome org>]

commit 83be97405c9a6583238fdb87d482b17c3289c2dd
Author: Michael Natterer <mitch gimp org>
Date:   Sun Apr 26 15:52:15 2015 -0400

    app: don't use a NULL blurb for GimpCoreConfig::mypaint-brush-path-writable

 app/config/gimpcoreconfig.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/app/config/gimpcoreconfig.c b/app/config/gimpcoreconfig.c
index 361989e..208a80e 100644
--- a/app/config/gimpcoreconfig.c
+++ b/app/config/gimpcoreconfig.c
@@ -341,7 +341,8 @@ gimp_core_config_class_init (GimpCoreConfigClass *klass)
                        "~/.mypaint/brushes",
                        NULL);
   GIMP_CONFIG_INSTALL_PROP_PATH (object_class, PROP_MYPAINT_BRUSH_PATH_WRITABLE,
-                                 "mypaint-brush-path-writable", NULL,
+                                 "mypaint-brush-path-writable",
+                                 MYPAINT_BRUSH_PATH_WRITABLE_BLURB,
                                  GIMP_CONFIG_PATH_DIR_LIST, path,
                                  GIMP_PARAM_STATIC_STRINGS |
                                  GIMP_CONFIG_PARAM_RESTART);