console command "getSystemConfig" return API for some parameter names

"getSystemConfig" or "getSystemConfig all" returned all parameters as expected. But when trying to return individual parameters values, some of the failed.

InfiniDB> getsystemconfig
getsystemconfig Thu May 5 16:10:11 2016

System Configuration

SystemName = calpont-1
SoftwareVersion = 5.0
SoftwareRelease = 0
ParentOAMModuleName = pm1
StandbyOAMModuleName = pm2
NMSIPAddr = 0.0.0.0
ModuleHeartbeatPeriod = 1
ModuleHeartbeatCount = 3
DBRootCount = 2
DBRoot1 = /usr/local/Calpont/data1
DBRoot2 = /usr/local/Calpont/data2
DBRMRoot = /usr/local/Calpont/data1/systemFiles/dbrm/BRM_saves
ExternalCriticalThreshold = 90
ExternalMajorThreshold = 80
ExternalMinorThreshold = 70
MaxConcurrentTransactions = 1000
SharedMemoryTmpFile =
NumVersionBufferFiles = 0
VersionBufferFileSize = 1
OIDBitmapFile = /usr/local/Calpont/data1/systemFiles/dbrm/oidbitmap
FirstOID = 3000
TransactionArchivePeriod = 10
InfiniDB>
InfiniDB> getsystemconfig NumVersionBufferFiles
getsystemconfig Thu May 5 16:10:18 2016

• • • • getSystemConfig Failed : Invalid Parameter passed in getSystemConfig API
        InfiniDB> getsystemconfig SharedMemoryTmpFile
        getsystemconfig Thu May 5 16:10:24 2016

• • • • getSystemConfig Failed : Invalid Parameter passed in getSystemConfig API
        InfiniDB>

If these parameters are not defined in the system, then we should return as such.