postrm fails if apache2 dependency not present

Binary package hint: drupal6

Because the postrm script assumes apache2 will be installed, If one manually installs the drupal6 .deb by accident, it cannot be removed due to a missing script:

(maverick-amd64)root@ubuntu:~# dpkg -i drupal6_6.16-1_all.deb
Selecting previously deselected package drupal6.
(Reading database ... 13590 files and directories currently installed.)
Unpacking drupal6 (from drupal6_6.16-1_all.deb) ...
dpkg: dependency problems prevent configuration of drupal6:
 drupal6 depends on apache2 | httpd; however:
  Package apache2 is not installed.
  Package httpd is not installed.
 drupal6 depends on php5; however:
  Package php5 is not installed.
 drupal6 depends on php5-mysql | php5-pgsql; however:
  Package php5-mysql is not installed.
  Package php5-pgsql is not installed.
 drupal6 depends on php5-gd; however:
  Package php5-gd is not installed.
 drupal6 depends on exim4 | mail-transport-agent; however:
  Package exim4 is not installed.
  Package mail-transport-agent is not installed.
 drupal6 depends on wwwconfig-common (>= 0.0.37); however:
  Package wwwconfig-common is not installed.
 drupal6 depends on mysql-client | virtual-mysql-client | postgresql-client; however:
  Package mysql-client is not installed.
  Package virtual-mysql-client is not installed.
  Package postgresql-client is not installed.
 drupal6 depends on dbconfig-common; however:
  Package dbconfig-common is not installed.
 drupal6 depends on curl; however:
  Package curl is not installed.
dpkg: error processing drupal6 (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 drupal6
(maverick-amd64)root@ubuntu:~# dpkg -r drupal6
(Reading database ... 14127 files and directories currently installed.)
Removing drupal6 ...
/var/lib/dpkg/info/drupal6.postrm: line 58: /usr/share/wwwconfig-common/restart.sh: No such file or directory
dpkg: error processing drupal6 (--remove):
 subprocess installed post-removal script returned error exit status 1
Errors were encountered while processing:
 drupal6
(maverick-amd64)root@ubuntu:~#

Note that a proposed patch is being bundled with the fix for LP: #582255