Log file not found message at debug level.

--HG--
branch : distribute
extra : rebase_source : 2c3afe957adc1b3c83f1dfba3d30adf7b0d7b3f3

setuptools/command/egg_info.py

@@ -285,7 +285,7 @@ class FileList(_FileList):
             if os.path.exists(path):
                 self.files.append(path)
             elif path != manifest_maker.template:
-                log.warn("%r not found -- skipping", path)
+                log.debug("%r not found -- skipping", path)
         except UnicodeEncodeError:
             log.warn("%r not %s encodable -- skipping", path,
                 sys.getfilesystemencoding())