[gegl] svg-load: use format string instead of trusting error message

[Øyvind Kolås <ok src gnome org>]

commit 16846e26813022be575bd77d84e22a9f6b35eab0
Author: Øyvind Kolås <pippin gimp org>
Date:   Sat Mar 19 14:05:31 2016 +0100

    svg-load: use format string instead of trusting error message

 operations/external/svg-load.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/operations/external/svg-load.c b/operations/external/svg-load.c
index ad51ab1..fe8e338 100644
--- a/operations/external/svg-load.c
+++ b/operations/external/svg-load.c
@@ -164,7 +164,7 @@ prepare (GeglOperation *operation)
       stream = gegl_gio_open_input_stream (o->uri, o->path, &p->file, &error);
       if (stream == NULL)
         {
-          g_warning (error->message);
+          g_warning ("%s", error->message);
           g_error_free (error);
           cleanup (operation);
           return;
@@ -175,7 +175,7 @@ prepare (GeglOperation *operation)
                                                     NULL, &error);
       if (p->handle == NULL)
         {
-          g_warning (error->message);
+          g_warning ("%s", error->message);
           g_error_free (error);
           cleanup (operation);
           return;