[Bug 56434] sync request (+ new upstream version for universe package)

[Matthias Klose]

Public bug reported:

please sync, overwriting Ubuntu changes

sylpheed-claws-gtk2 2.4.0-1 from unstable

** Affects: Ubuntu
     Importance: Untriaged
         Status: Unconfirmed

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sync request (+ new upstream version for universe package)
https://launchpad.net/bugs/56434