If stream is closed without stream_errno set, change it to ECONNRESET so if there are any future reads they'll return it.
If stream is closed without stream_errno set, change it to ECONNRESET so if
there are any future reads they'll return it.

--HG--
branch : HEAD

jkerihuel/dovecot,jkerihuel/dovecot,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jkerihuel/dovecot,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jkerihuel/dovecot,jkerihuel/dovecot