improve region deregistration log message
improve region deregistration log message

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