Add a space to properly format multi-line log output

[kevinebaugh]

🤓

Current output:

Expiration interval (6569244) too long for Memcached and too short to be a future timestamp,converting to an expiration timestamp

With this fix:

Expiration interval (6569244) too long for Memcached and too short to be a future timestamp, converting to an expiration timestamp

[petergoldstein]

Thanks!