** Description changed:

  * OS release: Ubuntu 16.04.1 LTS
  * Package version: 3.168.3
  
  For the past few days (maybe even weeks for other users), update-
  notifier has been very repeatedly failing to handle the downloads for
  ttf-mscorefonts-installer. Previously it was working fine on the same
  system.
  
  This seems to affect a lot of desktop users, but the issue is usually
  misdiagnosed on forums because it is attributed to ttf-mscorefonts-
  installer and not to update-notifier-common.
  
  The issue is made particularly irritating because the update-notifier
  cron job tries and fails and notifies users daily of this failure.
  
  The issue can be reproduced by having ttf-mscorefonts-installer
  installed, and running:
  
-     sudo dpkg-reconfigure update-notifier-common
+     sudo dpkg-reconfigure update-notifier-common
  
  The error messages seem to be random but actually appear to be
  consistent for a given download source:
  
  * freefr.dl.sourceforge.net: 404  Not Found
  * kent.dl.sourceforge.net: Protocol "http" not supported or disabled in 
libcurl
  * netassist.dl.sourceforge.net: The HTTP server sent an invalid Content-Range 
header Bad header data [IP: 62.205.134.42 80]
  * netcologne.dl.sourceforge.net: The HTTP server sent an invalid 
Content-Range header
  * netix.dl.sourceforge.net: 404  Not Found
  * vorboss.dl.sourceforge.net: 404  Not Found
  
  In all above cases, the reported failing URL can be downloaded just fine
  using wget.
  
- Some other mirrors appear to work (unfortunately, mirror names are only 
printed
- in case of errors). However, since ttf-mscorefonts-installer triggers 11 
downloads in a row, chances of randomly getting 11 working mirrors are very low.
+ Some other mirrors appear to work (unfortunately, mirror names are only
+ printed in case of errors). However, since ttf-mscorefonts-installer
+ triggers 11 downloads in a row, chances of randomly getting 11 working
+ mirrors are very low.
+ 
+ I am tagging this as regression-update because the issue started
+ happening when upgrading from 3.168.2 to 3.168.3 last Friday. It is of
+ course entirely possible the root cause is in another package, but this
+ would also likely be a regression-update, since I am very careful about
+ system-wide changes on this machine.
+ 
+ The previous update from 3.168.1 to 3.168.2 on November 4th went just
+ fine. ttf-mscorefonts-installer has been installed (just fine) on
+ September 26th, and not upgraded since then.

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https://bugs.launchpad.net/bugs/1655431

Title:
  update-notifier / ttf-mscorefonts-installer download failure
  (regression)

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