K 10 svn:author V 3 alc K 8 svn:date V 27 2009-05-17T23:25:53.297835Z K 7 svn:log V 196 Several changes to vfs_bio_clrbuf(): Provide a more descriptive comment. Eliminate dead code. The page cannot possibly have PG_ZERO set. Eliminate unnecessary blank lines. Reviewed by: tegge END