[dovecot/core] 8e9693: pop3c: Ensure pop3c index directory is autocreated

[GitHub]

  Branch: refs/heads/master-2.3
  Home:   https://github.com/dovecot/core
  Commit: 8e9693f1777cd9f516c5556c55298e8740a98220
      https://github.com/dovecot/core/commit/8e9693f1777cd9f516c5556c55298e8740a98220
  Author: Aki Tuomi <aki.tuomi at dovecot.fi>
  Date:   2018-06-04 (Mon, 04 Jun 2018)

  Changed paths:
    M src/lib-storage/index/pop3c/pop3c-storage.c

  Log Message:
  -----------
  pop3c: Ensure pop3c index directory is autocreated

Otherwise we might think that the box has been unexpectedly
autodeleted and pop3_migration will fail.

Broken by 91ee70ed04d33fecd7fc94621f236013d520d7b3



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