conffile prompt on dapper->hardy upgrade

I get the following conffile prompt on dapper->hardy upgrade

Setting up genisoimage (9:1.1.6-1ubuntu3) ...^M
Setting up dvd+rw-tools (7.0-7) ...^M
Setting up wodim (9:1.1.6-1ubuntu3) ...^M
^M
Configuration file `/etc/wodim.conf'^M
 ==> File on system created by you or by a script.^M
 ==> File also in package provided by package maintainer.^M
   What would you like to do about it ? Your options are:^M
    Y or I : install the package maintainer's version^M
    N or O : keep your currently-installed version^M
      D : show the differences between the versions^M
      Z : background this process to examine the situation^M
 The default action is to keep your current version.^M
*** wodim.conf (Y/I/N/O/D/Z) [default=N] ? [74.0115] genisoimage: Configuring genisoimage

md5sums:
7a4383a7c0995736dee9d646b0724d08 wodim.conf
9369bbf580daf4c52288f951dd547b37 wodim.conf.dpkg-dist