[DRE-maint] Bug#493309: rubygems1.9: file conflict with libruby1.9

[Aaron M. Ucko]

Package: rubygems1.9
Version: 1.2.0-1
Severity: grave
Justification: renders package unusable (uninstallable)

Unpacking rubygems1.9 (from .../rubygems1.9_1.2.0-1_all.deb) ...
dpkg: error processing /var/cache/apt/archives/rubygems1.9_1.2.0-1_all.deb (--unpack):
 trying to overwrite `/usr/lib/ruby/1.9.0/rbconfig/datadir.rb', which is also in package libruby1.9
dpkg-deb: subprocess paste killed by signal (Broken pipe)

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash