[gthumb] raw: fixed crash at start-up time

[Paolo Bacchilega <paobac src gnome org>]

commit cad81e76afc650e8ce95bf52d2d79a0b104b9b0e
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Wed Dec 23 17:21:12 2015 +0100

    raw: fixed crash at start-up time
    
    the mime type array is closed by a null element

 extensions/raw_files/main.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/extensions/raw_files/main.c b/extensions/raw_files/main.c
index 3c1bea4..6cf2ff8 100644
--- a/extensions/raw_files/main.c
+++ b/extensions/raw_files/main.c
@@ -408,7 +408,7 @@ gthumb_extension_activate (void)
        int count_of_raw_types, i;
        count_of_raw_types = g_list_length (mime_types);
 
-       gchar *raw_mime_types[count_of_raw_types];
+       gchar *raw_mime_types[count_of_raw_types+1];
 
        i = 0;
        l = mime_types;
@@ -418,6 +418,7 @@ gthumb_extension_activate (void)
                i++;
                l = next;
        }
+       raw_mime_types[i] = NULL;
 
        gth_main_register_metadata_provider (GTH_TYPE_METADATA_PROVIDER_RAW);
        gth_main_register_image_loader_func_v (_cairo_image_surface_create_from_raw,