Bug#527331: Error handling is dodgy

[Juliusz Chroboczek <Juliusz.Chroboczek@pps.jussieu.fr>]

Package: live-helper
Version: 1.0.4-1

Live-helper doesn't propagate errors correctly.  If something goes wrong
during the installation, live-helper will not propagate the return code,
which means that you need to carefully scan your logs in order to find
out if everything is okay.

Here's an example:

  Unpacking xserver-xorg (from .../xserver-xorg_1%3a7.3+18_i386.deb) ...
  xargs: apt-get: terminated by signal 15
  P: Begin unmounting filesystems...
  Done!

The ``Done!'' is printed by my script, and indicates that lh_build
returned status 0.


                                        Juliusz