`bzr --version` should care about encoding of stdout

[Alexander Belchenko]

Windows users, who use localized version, often have My Document folder name translated to their languages. Because bzr use My Documents folder to place there .bzr.log, so sometimes abspath to .bzr.log may contains non-ascii characters. Therefore command

C:> bzr --version | less

Is fails with UnicodeEncodeError.

E:\Bazaar\mydev\bzr.dev>python bzr --version |less
bzr: ERROR: exceptions.UnicodeEncodeError: 'ascii' codec can't encode characters in position 3-5: ordinal not in range(128)

Traceback (most recent call last):
  File "E:\Bazaar\mydev\bzr.dev\bzrlib\commands.py", line 817, in run_bzr_catch_errors
    return run_bzr(argv)
  File "E:\Bazaar\mydev\bzr.dev\bzrlib\commands.py", line 746, in run_bzr
    show_version()
  File "E:\Bazaar\mydev\bzr.dev\bzrlib\version.py", line 55, in show_version
    print " Bazaar log file:", trace._bzr_log_filename
UnicodeEncodeError: 'ascii' codec can't encode characters in position 3-5: ordinal not in range(128)

bzr 0.19.0dev0 on python 2.4.4.final.0 (win32)
arguments: ['bzr', '--version']

Function show_versoin should take care about encoding of stdout. Currently it just print data. It's unicode unsafe.

[Aaron Bentley (abentley)]

This does not give a good first impression

[Alexander Belchenko (bialix)]

merged to bzr.dev