change ucell in module_io/write_elecstat_pot.cpp

Author: A-006

source/module_io/write_elecstat_pot.cpp

@@ -100,7 +100,7 @@ void write_elecstat_pot(
         istep,
         fn,
         ef_tmp,
-        &(GlobalC::ucell),
+        ucell,
         precision,
         out_fermi);