Bug#42239: dpkg: start-stop-daemon needs an option to change UID

[<md@linux.it>]

Package: dpkg
Version: 1.4.0.34

start-stop-daemon should have a command line option to change UID or GID.

-- System Information
Debian Release: 2.1
Kernel Version: Linux wonderland 2.2.5 #0 Sat Jun 5 22:09:52 CEST 1999 i586 unknown

Versions of the packages dpkg depends on:
ii  libc6           2.0.7.19981211 GNU C Library: shared libraries
ii  libncurses4     4.2-3          Shared libraries for terminal handling
ii  libstdc++2.9    2.91.60-5      The GNU stdc++ library (egcs version)