Comment 18 for bug 172383

OK, it is how to apply normalized_unicode_filename.bundle in Max OS X.
(maybe same other platform.)

1. open Terminal.app

2. download normalized_unicode_filename.bundle to HOME directory
  $ cd $HOME
  $ curl -O https://launchpadlibrarian.net/52428742/normalized_unicode_filename.bundle

3. find bzrlib directory.
  $ find / -type d -name bzrlib 2>/dev/null
  /Library/Python/2.6/site-packages/bzrlib

 4. change to bzrlib directory
   $ cd /Library/Python/2.6/site-packages/bzrlib

 5. apply patch
   $ sudo patch -p1 < $HOME/normalized_unicode_filename.bundle
   Password: (Enter your password)
   patching file mutabletree.py
   Hunk #1 succeeded at 682 (offset 14 lines).
   patching file osutils.py
   Hunk #1 succeeded at 1754 (offset 5 lines).
   patching file tests /test_osutils.py
   Hunk #1 succeeded at 1325 (offset -3 lines).

 FINISH :)