Bug#762048: kernel-summary: avoid sending notifications when rmadison fails

[Cyril Brulebois <kibi@debian.org>]

Package: d-i.debian.org
Severity: normal

This kind of things are annoying:
  Jul 21 Linux kernel wa (0.3K) Linux kernel ABI bump in testing: from 3.14-1 to (none)
  Jul 21 Linux kernel wa (0.3K) Linux kernel ABI bump in unstable: from 3.14-1 to (none)
  Jul 21 Linux kernel wa (0.3K) Linux kernel ABI bump in experimental: from 3.16-rc5 to (none)
  Jul 22 Linux kernel wa (0.3K) Linux kernel ABI bump in testing: from (none) to 3.14-1
  Jul 22 Linux kernel wa (0.3K) Linux kernel ABI bump in unstable: from (none) to 3.14-1
  Jul 22 Linux kernel wa (0.3K) Linux kernel ABI bump in experimental: from (none) to 3.16-rc5

It'd be nice to catch (none) cases instead, and abort.

Mraw,
KiBi.