v1.5 removed __func__ support
v1.5 removed __func__ support

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