12.1-STABLE が 12.2-PRERELEASE になった

r364897 | gjb | 2020-08-28 09:00:37 +0900 (2020/08/28 (金)) | 6 lines

Rename stable/12 to 12.2-PRERELEASE, marking the start of the
12.2 release cycle.

Approved by: re (implicit)
Sponsored by: Rubicon Communications, LLC (netgate.com)