minor: remove compiler warning from NullEstateData
minor: remove compiler warning from NullEstateData

BogusCurry/arribasim-dev,OpenSimian/opensimulator,OpenSimian/opensimulator,TomDataworks/opensim,ft-/arribasim-dev-extras,QuillLittlefeather/opensim-1,BogusCurry/arribasim-dev,RavenB/opensim,M-O-S-E-S/opensim,TomDataworks/opensim,ft-/arribasim-dev-tests,TomDataworks/opensim,M-O-S-E-S/opensim,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,Michelle-Argus/ArribasimExtract,QuillLittlefeather/opensim-1,TomDataworks/opensim,RavenB/opensim,M-O-S-E-S/opensim,TomDataworks/opensim,OpenSimian/opensimulator,BogusCurry/arribasim-dev,OpenSimian/opensimulator,QuillLittlefeather/opensim-1,M-O-S-E-S/opensim,ft-/opensim-optimizations-wip-tests,ft-/arribasim-dev-tests,Michelle-Argus/ArribasimExtract,Michelle-Argus/ArribasimExtract,QuillLittlefeather/opensim-1,ft-/arribasim-dev-tests,BogusCurry/arribasim-dev,ft-/arribasim-dev-extras,RavenB/opensim,ft-/arribasim-dev-tests,M-O-S-E-S/opensim,OpenSimian/opensimulator,Michelle-Argus/ArribasimExtract,ft-/opensim-optimizations-wip-extras,ft-/opensim-optimizations-wip-tests,ft-/arribasim-dev-tests,ft-/arribasim-dev-tests,BogusCurry/arribasim-dev,TomDataworks/opensim,TomDataworks/opensim,ft-/opensim-optimizations-wip-tests,ft-/opensim-optimizations-wip-extras,ft-/opensim-optimizations-wip,OpenSimian/opensimulator,Michelle-Argus/ArribasimExtract,RavenB/opensim,ft-/opensim-optimizations-wip-tests,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,QuillLittlefeather/opensim-1,ft-/opensim-optimizations-wip,BogusCurry/arribasim-dev,OpenSimian/opensimulator,ft-/arribasim-dev-extras,QuillLittlefeather/opensim-1,M-O-S-E-S/opensim,ft-/opensim-optimizations-wip-tests,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,ft-/opensim-optimizations-wip-extras,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,RavenB/opensim,RavenB/opensim,ft-/opensim-optimizations-wip,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,ft-/opensim-optimizations-wip,QuillLittlefeather/opensim-1,ft-/arribasim-dev-extras,ft-/opensim-optimizations-wip-extras,ft-/opensim-optimizations-wip-extras,ft-/arribasim-dev-extras,RavenB/opensim,M-O-S-E-S/opensim,ft-/arribasim-dev-extras,Michelle-Argus/ArribasimExtract