v4.05 performance improvement while making log path
v4.05 performance improvement while making log path

spthaolt/easyloggingpp,utiasASRL/easyloggingpp,spthaolt/easyloggingpp,lisong521/easyloggingpp,dreal-deps/easyloggingpp,arvidsson/easyloggingpp,dreal-deps/easyloggingpp,chenmusun/easyloggingpp,simonhang/easyloggingpp,chenmusun/easyloggingpp,dreal-deps/easyloggingpp,hellowshinobu/easyloggingpp,lisong521/easyloggingpp,simonhang/easyloggingpp,arvidsson/easyloggingpp,spthaolt/easyloggingpp,blankme/easyloggingpp,utiasASRL/easyloggingpp,arvidsson/easyloggingpp,hellowshinobu/easyloggingpp,simonhang/easyloggingpp,spqr33/easyloggingpp,chenmusun/easyloggingpp,hellowshinobu/easyloggingpp,blankme/easyloggingpp,spqr33/easyloggingpp,blankme/easyloggingpp,spqr33/easyloggingpp,utiasASRL/easyloggingpp,lisong521/easyloggingpp