K 10 svn:author V 8 mckusick K 8 svn:date V 27 2018-02-02T23:26:52.453790Z K 7 svn:log V 198 Check and report error returns from sbput(3) calls. Convert to using cgput(3) for writing cylinder groups. Check and report error returns from cgput(3). Submitted by: Bruce Evans END