[offlineimap] Use mail 'date' as file prefix if using utime_from_header. (#265)

[Nicolas Sebrecht]

Closed #265.

---
Reply to this email directly or view it on GitHub:
https://github.com/OfflineIMAP/offlineimap/pull/265#event-454241837
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://alioth-lists.debian.net/pipermail/offlineimap-project/attachments/20151104/a7b04518/attachment-0003.html>