fix DOS name in SDFT

Author: mohanchen

source/module_hamilt_pw/hamilt_stodft/sto_dos.cpp

@@ -240,7 +240,7 @@ void Sto_DOS<FPTYPE, Device>::caldos(const double sigmain, const double de, cons
 #endif
     if (GlobalV::MY_RANK == 0)
     {
-        std::string dosfile = PARAM.globalv.global_out_dir + "DOS1_smearing.dat";
+        std::string dosfile = PARAM.globalv.global_out_dir + "DOS1_smear.dat";
         ofsdos.open(dosfile.c_str());
         double maxerror = 0;
         double sum = 0;
@@ -271,4 +271,4 @@ void Sto_DOS<FPTYPE, Device>::caldos(const double sigmain, const double de, cons
 template class Sto_DOS<double, base_device::DEVICE_CPU>;
 #if ((defined __CUDA) || (defined __ROCM))
 template class Sto_DOS<double, base_device::DEVICE_GPU>;
-#endif
+#endif