updated for version 7.4a.009

Problem:    Compiler warnings for function prototypes.
Solution:   Add "void".  Move list_features() prototype. (Ken Takata)

src/if_py_both.h

@@ -2100,7 +2100,7 @@ ListNew(PyTypeObject *subtype, list_T *list)
 }
 
     static list_T *
-py_list_alloc()
+py_list_alloc(void)
 {
     list_T	*ret;
 
@@ -5857,7 +5857,7 @@ init_structs(void)
 	return -1;
 
     static int
-init_types()
+init_types(void)
 {
     PYTYPE_READY(IterType);
     PYTYPE_READY(BufferType);