[gnome-builder] editor: use "Plain Text" to signify no language set

[Christian Hergert <chergert src gnome org>]

commit 8124c875ef20cc4fc40dbcbec40280cba37bfbd7
Author: Christian Hergert <christian hergert me>
Date:   Sun Mar 29 17:17:17 2015 -0700

    editor: use "Plain Text" to signify no language set

 src/editor/gb-editor-view.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/editor/gb-editor-view.c b/src/editor/gb-editor-view.c
index 30545a3..730942a 100644
--- a/src/editor/gb-editor-view.c
+++ b/src/editor/gb-editor-view.c
@@ -102,8 +102,12 @@ language_to_string (GBinding     *binding,
   GtkSourceLanguage *language;
 
   language = g_value_get_object (from_value);
+
   if (language != NULL)
     g_value_set_string (to_value, gtk_source_language_get_name (language));
+  else
+    g_value_set_string (to_value, _("Plain Text"));
+
   return TRUE;
 }