Bug#527331: Error handling is dodgy

[Daniel Baumann <daniel@debian.org>]

tags 527331 +moreinfo
thanks

Hi,

i've tried different szenarios..

first, if an error happens to live-helper itself, it properly ends with
return value (after cleaning up the pseudo fs).

second, if an error in chroot happens, it also properly ends with return
value.

also, i've tried killing various processes during build, and it always
returned properly an error value.

please sumbit a test case to reproduce it.

Regards,
Daniel

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