Comment 4 for bug 1302300

I just got
The following extra packages will be installed:
  isc-dhcp-client
The following packages will be upgraded:
  isc-dhcp-client
1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/640 kB of archives.
After this operation, 1,024 B of additional disk space will be used.
Do you want to continue? [Y/n]
(Reading database ... 260277 files and directories currently installed.)
Preparing to unpack .../isc-dhcp-client_4.2.4-7ubuntu10_amd64.deb ...
/var/lib/dpkg/tmp.ci/preinst: 17: /var/lib/dpkg/tmp.ci/preinst: Syntax error: "fi" unexpected (expecting "then")
dpkg: error processing archive /var/cache/apt/archives/isc-dhcp-client_4.2.4-7ubuntu10_amd64.deb (--unpack):
 subprocess new pre-installation script returned error exit status 2
Errors were encountered while processing:
 /var/cache/apt/archives/isc-dhcp-client_4.2.4-7ubuntu10_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)