K 10 svn:author V 7 trhodes K 8 svn:date V 27 2006-04-29T02:04:06.000000Z K 7 svn:log V 245 Remove two semicolons accidently removed in the previous revision. Add definition of "low water mark" and "high water mark." The low water mark is used by mac_lomac(4), and high water mark is just here for completeness. Add a missing period. END