[REF] avoid the lookup in sorted translation export as suggested by Guewen Baconnier @ Camptocamp

bzr revid: ls@numerigraphe.com-20130829075035-lml81a7bbn66c8qu

openerp/tools/translate.py

@@ -458,8 +458,7 @@ def trans_export(lang, modules, buffer, format, cr):
                 row.setdefault('tnrs', []).append((type, name, res_id))
                 row.setdefault('comments', set()).update(comments)
 
-            for src in sorted(grouped_rows):
-                row = grouped_rows[src]
+            for src, row in sorted(grouped_rows.items()):
                 if not lang:
                     # translation template, so no translation value
                     row['translation'] = ''