Merge branch 'V5-5-patches' into V5-6-patches

* V5-5-patches:
  Simplify snmpTargetAddr_rowStatusCheck()
  testing/fulltests/default/T068execfix_simple: Simplify
  CHANGES: Win32: perl: BUG: 2488: Avoid "Free to wrong pool" error
  CHANGES: perl: BUG: 2402: Add support for SNMPv3 traps