Fix the buffer flag frobbing.  Note: It is invalid to gratuitiously modify b_flags, and this patch removes unneeded modifications.  Only the needed b_flags bits are modified now.  (Specifically, it is usually wrong to zero b_flags.) Submitted by:	bde@freebsd.org
Fix the buffer flag frobbing.  Note: It is invalid to gratuitiously modify
b_flags, and this patch removes unneeded modifications.  Only the needed b_flags
bits are modified now.  (Specifically, it is usually wrong to zero b_flags.)
Submitted by:	bde@freebsd.org

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase