K 10 svn:author V 3 bcr K 8 svn:date V 27 2020-04-30T11:17:29.077826Z K 7 svn:log V 227 Add HISTORY sections to disk(9), driver(9), and epoch(9). In one instance, remove a trailing whitespace while here. Submitted by: gbergling_gmail.com Approved by: bcr Differential Revision: https://reviews.freebsd.org/D24243 END