Bug#783584: debsources: improve webapp 404 handling (e.g. jessie -> stretch move)

[Matthieu Caneill <matthieu.caneill@gmail.com>]

Package: qa.debian.org
Severity: normal
Usertags: debsources

During the move jessie->stretch, many 404 errors were not logged, and
hence more difficult to debug. It would be nice to log the type of
errors that lead to massive 404s.

Cheers,
--
Matthieu


-- System Information:
Debian Release: 7.8
  APT prefers testing-updates
  APT policy: (500, 'testing-updates'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash