removed std::endl from message stream
removed std::endl from message stream

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