dsift.h: resolve doxygen warning
dsift.h: resolve doxygen warning

erexhepa/vlfeat,CansenJIANG/vlfeat,rxl194/vlfeat,richarddzh/vlfeat,richarddzh/vlfeat,WangDequan/vlfeat,cvfish/vlfeat,richarddzh/vlfeat,erexhepa/vlfeat,erexhepa/vlfeat,hongzhili/vlfeat,qubick/vlfeat,WangDequan/vlfeat,rxl194/vlfeat,richarddzh/vlfeat,vlfeat/vlfeat,j-bo/vlfeat,mylxiaoyi/vlfeat,mylxiaoyi/vlfeat,mylxiaoyi/vlfeat,vlfeat/vlfeat,qubick/vlfeat,j-bo/vlfeat,j-bo/vlfeat,hongzhili/vlfeat,qubick/vlfeat,WangDequan/vlfeat,hongzhili/vlfeat,qubick/vlfeat,cvfish/vlfeat,richarddzh/vlfeat,vlfeat/vlfeat,vlfeat/vlfeat,mylxiaoyi/vlfeat,mylxiaoyi/vlfeat,qubick/vlfeat,WangDequan/vlfeat,cvfish/vlfeat,rxl194/vlfeat,richarddzh/vlfeat,cvfish/vlfeat,j-bo/vlfeat,CansenJIANG/vlfeat,hongzhili/vlfeat,vlfeat/vlfeat,vlfeat/vlfeat,rxl194/vlfeat,erexhepa/vlfeat,hongzhili/vlfeat,hongzhili/vlfeat,CansenJIANG/vlfeat,CansenJIANG/vlfeat,rxl194/vlfeat,WangDequan/vlfeat,CansenJIANG/vlfeat,erexhepa/vlfeat,WangDequan/vlfeat,erexhepa/vlfeat,cvfish/vlfeat,cvfish/vlfeat,CansenJIANG/vlfeat,mylxiaoyi/vlfeat,rxl194/vlfeat,j-bo/vlfeat,qubick/vlfeat