[gedit] Fix crash updating snippets env for remote files

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 312259b614e6d193bf69f9eb7a5f1be1030f5193
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Fri Jan 20 23:00:11 2012 +0100

    Fix crash updating snippets env for remote files

 plugins/snippets/snippets/document.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/plugins/snippets/snippets/document.py b/plugins/snippets/snippets/document.py
index dbc3d16..289f117 100644
--- a/plugins/snippets/snippets/document.py
+++ b/plugins/snippets/snippets/document.py
@@ -358,7 +358,7 @@ class Document(GObject.Object, Gedit.ViewActivatable, Signals):
         def env_get_document_path(self, buf):
                 location = buf.get_location()
 
-                if location:
+                if location and Gedit.utils_location_has_file_scheme(location):
                         return location.get_path()
                 else:
                         return ''