Make variable_buffer::set() overflow checking more precise
Make variable_buffer::set() overflow checking more precise

  Fix toString() argument documentation

Change-Id: I65cfc01dd04ef48588cc64b2acf5fd7b5ff5f2c7
Original-Change-Id: I321e59a89d52d8d1681515b76c796027d127078b
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/16848
Reviewed-by: Thi N. Tran <25a2bca7ae5a8ea03be09ca8d282480c08c13052@us.ibm.com>
Reviewed-by: PRACHI GUPTA <25a72946fc4ec2539bba3cff1fbb2916af6a7649@us.ibm.com>
Reviewed-by: Brian Silver <af0eed78d989d9597decc8b92fa6db01ef8b58e0@us.ibm.com>
Tested-by: Brian Silver <af0eed78d989d9597decc8b92fa6db01ef8b58e0@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot