=== modified file 'apt_clone.py'
--- apt_clone.py	2014-02-10 10:36:19 +0000
+++ apt_clone.py	2014-04-18 17:19:52 +0000
@@ -247,7 +247,7 @@
 
     def _add_file_to_tar_with_password_check(self, tar, sources, scrub, arcname):
         if scrub:
-            with tempfile.NamedTemporaryFile(mode='wb') as source_copy, open(sources, 'r') as f:
+            with tempfile.NamedTemporaryFile(mode='wb') as source_copy, open(sources, 'rb') as f:
                 for line in f.readlines():
                     if re.search('/[^/@:]*:[^/@:]*@', line):
                         line = re.sub('/[^/@:]*:[^/@:]*@',
@@ -256,8 +256,8 @@
                     # open in Unicode mode in Python 2.  We can remove this
                     # once ubuntu-release-upgrader is run under Python 3
                     # (i.e. after Ubuntu 14.04).
-                    if line is not bytes:
-                        line = line.encode("UTF-8")
+                    #if line is not bytes:
+                    #    line = line.encode("UTF-8")
                     source_copy.write(line)
                     source_copy.flush()
                 tar.add(source_copy.name, arcname=arcname)