Bug#235623: dpkg: -x changes target directory's permission

["Carlos Z.F. Liu" <carlos_liu@yahoo.com>]

Package: dpkg
Version: 1.10.18.1
Severity: normal

When I use "dpkg -x one_pkg_name.deb target_dir" to extract the deb
file, the program always changed the target_dir's permission to
drwxr-xr-x whatever the original permission is.

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (990, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.4.24-1-686
Locale: LANG=en_US, LC_CTYPE=zh_CN.GBK

Versions of packages dpkg depends on:
ii  dselect                     1.10.18.1    a user tool to manage Debian packa
ii  libc6                       2.3.2.ds1-11 GNU C Library: Shared libraries an

-- no debconf information