bug#3616: 23.0.94; vc-bzr coding system bug

In short, the bug is, when I use Chinese, it cannot commit successfully.
The version of my bazaar is 1.15.

Next I will show 3 bazaar sessions and their bzr log, 1 and 3 are with this bug.
Obviously, the command string passed from Emacs to bazaar was wrongly encoded.

1. When I run the command bzr commit in Emacs *shell* buffer, my
comment message is written in Chinese, the result was:
--------------------------------
d:\ehome\5-Dev\Mobile\Brew\Ver0.9\ehome>bzr commit -m
"修正了联系人列表的焦点移动问题和按#键时的菜单更新问题。"
bzr commit -m "淇  浜绯讳汉琛ㄧ圭Щㄩ? 剁存伴 ?
Traceback (most recent call last):
 File "bzr", line 130, in <module>
 File "bzrlib\commands.pyo", line 969, in main
bzrlib.errors.BzrError: Parameter
''\xe4\xbf\xae\xe6\xad\xa3\xe4\xba\x86\xe8\x81\x94\xe7\xb3\xbb\xe4\xba\xba\xe5\x88\x97\xe8\xa1\xa8\xe7\x9a\x84\xe7\x84\xa6\xe7\x82\xb9\xe7\xa7\xbb\xe5\x8a\xa8\xe9\x97\xae\xe9\xa2\x98\xe5\x92\x8c\xe6\x8c?\xe9\x94\xae\xe6\x97\xb6\xe7\x9a\x84\xe8\x8f\x9c\xe5\x8d\x95\xe6\x9b\xb4\xe6\x96\xb0\xe9\x97\xae\xe9\xa2\x98\xe3\x80?''
is unsupported by the current encoding.
--------------------------------
I run the above command twice.  Both got the same result.  There was
no bzr log  for these two operations in the file .bzr.log.

2. It could not commit until I changed the comment message to English:
--------------------------------
d:\ehome\5-Dev\Mobile\Brew\Ver0.9\ehome>bzr commit -m "Fixed the focus
move problems in the contact list and the update problem on the menu
bar when # key is clicked."
bzr commit -m "Fixed the focus move problems in the contact list and
the update problem on the menu bar when # key is clicked."
Committing to: D:/ehome/5-Dev/Mobile/Brew/Ver0.9/ehome/
modified .bzrignore
modified App/ChattingListBox.h
modified App/ChattingListBox.inl
modified App/EhomeAppLayer.h
modified App/EhomeAppLayer.inl
modified App/EhomeAppLayer_Session.inl
modified App/SipPriorityTable.h
modified App/StructInfo/Message.h
modified App/StructInfo/Message.inl
modified App/StructInfo/session.inl
modified AppUI/ChattingListBoxItem.inl
modified AppUI/ChattingTabPage.h
modified AppUI/ChattingTabPage.inl
modified AppUI/ContactsListTabPage.inl
modified AppUI/ContactsListTree.inl
modified AppUI/FormChat.inl
modified AppUI/MsgItemTrans.inl
modified AppUI/SendTakePic.inl
modified AppUI/SetInfoTakePic.inl
modified AppUI/TreeViewWithAds.h
modified AppUI/TreeViewWithAds.inl
modified AppUI/WithAdItemListbox.inl
modified AppUI/AdsUI/AdsAction.h
modified AppUI/AdsUI/AdsAction.inl
modified AppUI/AdsUI/AdsComm.inl
modified AppUI/AdsUI/AdsHttpRequest.h
modified AppUI/AdsUI/AdsHttpRequest.inl
modified AppUI/AdsUI/AdsItemPainter.h
modified AppUI/AdsUI/AdsItemPainter.inl
modified common/SaveRecord.inl
modified common/config.h
modified common/ehomesound.h
modified common/ehomesound.inl
modified common/logger.inl
modified common/sound.inl
modified common/util.h
modified common/util.inl
modified common/net/MySocket.inl
modified common/stl/astringbuilder.inl
modified common/stl/wstring.h
added doc/contacts_focus.txt
added doc/tilemgr_test_cases.html
Committed revision 56.
--------------------------------

The log in .bzr.log is:
--------------------------------
星期五 2009-06-19 15:46:19 +0800
0.125  bzr arguments: [u'commit', u'-m', u'Fixed the focus move
problems in the contact list and the update problem on the menu bar
when # key is clicked.']
0.140  looking for plugins in C:/Documents and
Settings/Ryan/Application Data/bazaar/2.0/plugins
0.140  looking for plugins in C:/Program Files/Bazaar/plugins
0.312  encoding stdout as osutils.get_user_encoding() 'cp936'
0.375  opening working tree 'D:/ehome/5-Dev/Mobile/Brew/Ver0.9/ehome'
0.437  preparing to commit
[ 4452] 2009-06-19 15:46:19.703 INFO: Committing to:
D:/ehome/5-Dev/Mobile/Brew/Ver0.9/ehome/
0.453  Selecting files for commit with filter []
[ 4452] 2009-06-19 15:46:19.875 INFO: modified .bzrignore
[ 4452] 2009-06-19 15:46:19.875 INFO: modified App/ChattingListBox.h
[ 4452] 2009-06-19 15:46:19.875 INFO: modified App/ChattingListBox.inl
[ 4452] 2009-06-19 15:46:19.875 INFO: modified App/EhomeAppLayer.h
[ 4452] 2009-06-19 15:46:19.875 INFO: modified App/EhomeAppLayer.inl
[ 4452] 2009-06-19 15:46:19.875 INFO: modified App/EhomeAppLayer_Session.inl
[ 4452] 2009-06-19 15:46:19.875 INFO: modified App/SipPriorityTable.h
[ 4452] 2009-06-19 15:46:19.890 INFO: modified App/StructInfo/Message.h
[ 4452] 2009-06-19 15:46:19.890 INFO: modified App/StructInfo/Message.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified App/StructInfo/session.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/ChattingListBoxItem.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/ChattingTabPage.h
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/ChattingTabPage.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/ContactsListTabPage.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/ContactsListTree.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/FormChat.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/MsgItemTrans.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/SendTakePic.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/SetInfoTakePic.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/TreeViewWithAds.h
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/TreeViewWithAds.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/WithAdItemListbox.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/AdsUI/AdsAction.h
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/AdsUI/AdsAction.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/AdsUI/AdsComm.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/AdsUI/AdsHttpRequest.h
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/AdsUI/AdsHttpRequest.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/AdsUI/AdsItemPainter.h
[ 4452] 2009-06-19 15:46:19.890 INFO: modified AppUI/AdsUI/AdsItemPainter.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified common/SaveRecord.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified common/config.h
[ 4452] 2009-06-19 15:46:19.890 INFO: modified common/ehomesound.h
[ 4452] 2009-06-19 15:46:19.890 INFO: modified common/ehomesound.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified common/logger.inl
[ 4452] 2009-06-19 15:46:19.890 INFO: modified common/sound.inl
[ 4452] 2009-06-19 15:46:19.905 INFO: modified common/util.h
[ 4452] 2009-06-19 15:46:19.905 INFO: modified common/util.inl
[ 4452] 2009-06-19 15:46:19.905 INFO: modified common/net/MySocket.inl
[ 4452] 2009-06-19 15:46:19.905 INFO: modified common/stl/astringbuilder.inl
[ 4452] 2009-06-19 15:46:19.905 INFO: modified common/stl/wstring.h
[ 4452] 2009-06-19 15:46:19.905 INFO: added doc/contacts_focus.txt
[ 4452] 2009-06-19 15:46:19.905 INFO: added doc/tilemgr_test_cases.html
[ 4452] 2009-06-19 15:46:20.733 INFO: Committed revision 56.
1.531  return code 0
--------------------------------

3. When I committed a single file from the *vc-dir* buffer using the v
shortcut, and write the message in Chinese, it also failed and
complained as follows:
--------------------------------
Traceback (most recent call last):
 File "bzr", line 130, in <module>
 File "bzrlib\commands.pyo", line 969, in main
bzrlib.errors.BzrError: Parameter
''\xe8\xaf\x95\xe8\xaf\x95\xe7\x94\xa8\xe4\xb8\xad\xe6\x96\x87\xe3\x80?''
is unsupported by the current encoding.
--------------------------------
It didn't generate any bzr log, either.



In GNU Emacs 23.0.94.1 (i386-mingw-nt5.1.2600)
of 2009-05-24 on SOFT-MJASON
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4)'

Important settings:
 value of $LC_ALL: nil
 value of $LC_COLLATE: nil
 value of $LC_CTYPE: nil
 value of $LC_MESSAGES: nil
 value of $LC_MONETARY: nil
 value of $LC_NUMERIC: nil
 value of $LC_TIME: nil
 value of $LANG: CHS
 value of $XMODIFIERS: nil
 locale-coding-system: cp936
 default-enable-multibyte-characters: t

Major mode: Shell

Minor modes in effect:
 diff-auto-refine-mode: t
 shell-dirtrack-mode: t
 desktop-save-mode: t
 show-paren-mode: t
 tooltip-mode: t
 tool-bar-mode: t
 mouse-wheel-mode: t
 menu-bar-mode: t
 file-name-shadow-mode: t
 global-font-lock-mode: t
 font-lock-mode: t
 blink-cursor-mode: t
 global-auto-composition-mode: t
 auto-composition-mode: t
 auto-encryption-mode: t
 auto-compression-mode: t
 column-number-mode: t
 line-number-mode: t
 transient-mark-mode: t

Recent input:
p d a t e SPC p r <backspace> <backspace> p r o b l
e m SPC o n SPC t h e m <backspace> SPC m e n u SPC
b a r SPC w h e n SPC p r e s s i n g <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> # SPC k e y SPC i s SPC p r e s s e d .
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> c l i c k e d .
C-f <return> M-v M-v C-l C-h l C-x 1 C-h L <return>
C-x o v C-v M-v C-x k <return> C-x o C-x 1 C-h k C-x
<return> f C-x <return> C-h C-x <return> t C-g C-h
k C-x <return> t C-x o C-v M-v C-p C-p C-p C-p C-p
C-p C-p C-p C-p C-p C-p C-n C-n C-n C-p C-p C-p C-p
C-p C-p C-p C-n <tab> <return> C-v C-x b <return> C-h
v t e r m i n a l <tab> <tab> <backspace> <backspace>
<backspace> <backspace> <backspace> c o <tab> <backspace>
<backspace> <tab> C-g C-x b <return> C-x b <return>
C-h v d e f a u l t SPC t e r <tab> <return> C-x 1
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
M-x f i n d SPC l i b <tab> <return> b z r <return>
M-x M-p <return> v c - v b <backspace> <backspace>
b a <backspace> z <tab> <return> C-v C-n C-n C-n C-n
C-n C-n C-n C-n C-f C-f C-f C-f C-f C-f <C-f2> <return>
M-v C-v C-v C-v C-v C-v C-v C-v C-v C-v C-v C-v C-v
C-v C-v C-v C-v C-v C-v C-v C-v C-v C-v C-v C-x k <return>
M-x r e p o r t SPC <tab> <return>

Recent messages:
History item: 2
Quit [3 times]
History item: 1 [2 times]
Type C-x 1 to delete the help window, C-M-v to scroll help.
Buffer is read-only: #<buffer *Help*>
Type C-x 1 to delete the help window, C-M-v to scroll help.
Quit
mouse-2, RET: find function's definition
Quit
find-library-name: Can't find library bzr
call-interactively: End of buffer