# apt-get remove --purge proftpd-mysql
Reading package lists... Done
Building dependency tree... Done
The following packages will be REMOVED:
  proftpd-mysql*
0 upgraded, 0 newly installed, 1 to remove and 53 not upgraded.
Need to get 0B of archives.
After unpacking 172kB disk space will be freed.
Do you want to continue [Y/n]? 
(Reading database ... dpkg: error processing proftpd-mysql (--purge):
 files list file for package `proftpd-mysql' contains empty filename
Errors were encountered while processing:
 proftpd-mysql
Processing was halted because there were too many errors.
E: Sub-process /usr/bin/dpkg returned an error code (1)