[dovecot/core] 0e8ff5: .gitignore: Ignore src/old-stats/old-stats

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 0e8ff50d2fefa67be142f250c3860037d46630b1
      https://github.com/dovecot/core/commit/0e8ff50d2fefa67be142f250c3860037d46630b1
  Author: Martti Rannanjärvi <martti.rannanjarvi at dovecot.fi>
  Date:   2017-12-13 (Wed, 13 Dec 2017)

  Changed paths:
    M .gitignore

  Log Message:
  -----------
  .gitignore: Ignore src/old-stats/old-stats