Fix signature of PyInterpreterView_FromCurrent()

Author: ZeroIntensity

peps/pep-0788.rst

@@ -358,7 +358,7 @@ Interpreter Views
 
     This type is guaranteed to be pointer-sized.
 
-.. c:function:: int PyInterpreterView_FromCurrent(PyInterpreterView *view)
+.. c:function:: PyInterpreterView PyInterpreterView_FromCurrent(void)
 
     Create a view to the current interpreter.