minor bug fixed
minor bug fixed

minhpqn/mlpack,stereomatchingkiss/mlpack,minhpqn/mlpack,trungda/mlpack,ajjl/mlpack,lezorich/mlpack,trungda/mlpack,ranjan1990/mlpack,bmswgnp/mlpack,bmswgnp/mlpack,ersanliqiao/mlpack,erubboli/mlpack,darcyliu/mlpack,chenmoshushi/mlpack,minhpqn/mlpack,erubboli/mlpack,theranger/mlpack,darcyliu/mlpack,thirdwing/mlpack,thirdwing/mlpack,BookChan/mlpack,Azizou/mlpack,theranger/mlpack,bmswgnp/mlpack,thirdwing/mlpack,BookChan/mlpack,datachand/mlpack,trungda/mlpack,datachand/mlpack,Azizou/mlpack,lezorich/mlpack,palashahuja/mlpack,ranjan1990/mlpack,ajjl/mlpack,darcyliu/mlpack,ranjan1990/mlpack,datachand/mlpack,chenmoshushi/mlpack,theranger/mlpack,ersanliqiao/mlpack,lezorich/mlpack,ersanliqiao/mlpack,chenmoshushi/mlpack,palashahuja/mlpack,Azizou/mlpack,palashahuja/mlpack,erubboli/mlpack,stereomatchingkiss/mlpack,stereomatchingkiss/mlpack,BookChan/mlpack,ajjl/mlpack