When moving index file to memory, change the filename to be "(in-memory index)".
When moving index file to memory, change the filename to be "(in-memory
index)".

LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot