Comment 2 for bug 374859

I can confirm this one. Here's what I have:
shivan@altis:~$ sudo aptitude install tex-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
The following partially installed packages will be configured:
  tex-common
0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 0B will be used.
Writing extended state information... Done
Setting up tex-common (2.01~5) ...
Running mktexlsr. This may take some time... done.
Running updmap-sys. This may take some time...
updmap-sys failed. Output has been stored in
/tmp/updmap.Ilkb73w1
Please include this file if you report a bug.

Sometimes, not accepting conffile updates in /etc/texmf/updmap.d
causes updmap-sys to fail. Please check for files with extension
.dpkg-dist or .ucf-dist in this directory

dpkg: error processing tex-common (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 tex-common
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install. Trying to recover:
Setting up tex-common (2.01~5) ...
Running mktexlsr. This may take some time... done.
Running updmap-sys. This may take some time...
updmap-sys failed. Output has been stored in
/tmp/updmap.TX8BgyyA
Please include this file if you report a bug.

Sometimes, not accepting conffile updates in /etc/texmf/updmap.d
causes updmap-sys to fail. Please check for files with extension
.dpkg-dist or .ucf-dist in this directory

dpkg: error processing tex-common (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 tex-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done