removed undefined behavior statement from BSLS_LOG_SIMPLE doc
removed undefined behavior statement from BSLS_LOG_SIMPLE doc

osubboo/bde,bloomberg/bde,frutiger/bde,che2/bde,RMGiroux/bde-allocator-benchmarks,bloomberg/bde,idispatch/bde,bowlofstew/bde,jmptrader/bde,apaprocki/bde,mversche/bde,idispatch/bde,osubboo/bde,apaprocki/bde,saxena84/bde,RMGiroux/bde-allocator-benchmarks,saxena84/bde,idispatch/bde,dbremner/bde,bloomberg/bde,idispatch/bde,dharesign/bde,bowlofstew/bde,dharesign/bde,bloomberg/bde-allocator-benchmarks,bloomberg/bde,minhlongdo/bde,gbleaney/Allocator-Benchmarks,dbremner/bde,gbleaney/Allocator-Benchmarks,mversche/bde,che2/bde,osubboo/bde,mversche/bde,RMGiroux/bde-allocator-benchmarks,minhlongdo/bde,bloomberg/bde-allocator-benchmarks,saxena84/bde,minhlongdo/bde,bloomberg/bde-allocator-benchmarks,frutiger/bde,jmptrader/bde,gbleaney/Allocator-Benchmarks,minhlongdo/bde,bloomberg/bde-allocator-benchmarks,RMGiroux/bde-allocator-benchmarks,dbremner/bde,dharesign/bde,dbremner/bde,osubboo/bde,mversche/bde,apaprocki/bde,gbleaney/Allocator-Benchmarks,apaprocki/bde,che2/bde,bowlofstew/bde,che2/bde,bowlofstew/bde,dharesign/bde,apaprocki/bde,jmptrader/bde,RMGiroux/bde-allocator-benchmarks,bloomberg/bde-allocator-benchmarks,jmptrader/bde,bloomberg/bde,frutiger/bde,frutiger/bde,saxena84/bde