Log Message:
Update to 1.18.12 (during the freeze, for the bugfixes). From the changelog:

* Support platforms without a hostname command, fall back to
  reading /etc/hostname.
  Thanks, Chris Morgan
* commit: Support -mmessage, without a space, since eg git commit
  can be used that way.
  Thanks, martin f. krafft
* commit: When multiple parameters are given, use them all as the commit
  message, instead of the old behavior of only using the first parameter and
  throwing the rest away.
  Thanks, martin f. krafft