[orca] Add missing string substitutions for debugging output

[Joanmarie Diggs <joanied src gnome org>]

commit a5aaeecc964e66ef26029e3e5d6945fe7e3f9a46
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Tue Jun 2 13:40:42 2015 -0400

    Add missing string substitutions for debugging output

 .../scripts/toolkits/Gecko/script_utilities.py     |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/src/orca/scripts/toolkits/Gecko/script_utilities.py 
b/src/orca/scripts/toolkits/Gecko/script_utilities.py
index 0215562..8be17d6 100644
--- a/src/orca/scripts/toolkits/Gecko/script_utilities.py
+++ b/src/orca/scripts/toolkits/Gecko/script_utilities.py
@@ -764,14 +764,15 @@ class Utilities(script_utilities.Utilities):
     def _getTextAtOffset(self, obj, offset, boundary):
         if not obj:
             msg = "INFO: Results for text at offset %i for %s using %s:\n" \
-                  "      String: '', Start: 0, End: 0. (obj is None)"
+                  "      String: '', Start: 0, End: 0. (obj is None)" % (offset, obj, boundary)
             debug.println(debug.LEVEL_INFO, msg)
             return '', 0, 0
 
         text = self.queryNonEmptyText(obj)
         if not text:
             msg = "INFO: Results for text at offset %i for %s using %s:\n" \
-                  "      String: '', Start: 0, End: 1. (queryNonEmptyText() returned None)"
+                  "      String: '', Start: 0, End: 1. (queryNonEmptyText() returned None)" \
+                  % (offset, obj, boundary)
             debug.println(debug.LEVEL_INFO, msg)
             return '', 0, 1