[bug-mailutils] broken attachments names (if long and encoded)

[Zeus Panchenko]

here, developer of RoundCube explains the issue

https://github.com/roundcube/roundcubemail/issues/6048#issuecomment-345240778

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Zeus V. Panchenko jid:***@im.ibs.dn.ua
IT Dpt., I.B.S. LLC GMT+2 (EET)

[Sergey Poznyakoff]

Thanks. I pushed commit a0b4f3b1.

Regards,
Sergey