Subject: bug#28018: don't throw away path at "Save MIME part to"

From: 積丹尼 Dan Jacobson <[email-masked]>
Date: Wed, 09 Aug 2017 01:54:29 +0800

Save MIME part to (default ): /a/b/c/d
  Please enter a non-directory file name
OK, but then the prompt throws away all the /a/b/c/d the user had entered.

Gnus v5.13
GNU Emacs 25.2.2 (x86_64-pc-linux-gnu, GTK+ Version 3.22.17)
 of 2017-08-01, modified by Debian