python --version should send output to STDOUT

Modules/main.c

 /* Python interpreter main program */
 
 #include "Python.h"
 #include "osdefs.h"
 
 #include <locale.h>
 
 #ifdef __VMS
 #error "PEP 11: VMS is now unsupported, code will be removed in Python 3.4"
 #include <unixlib.h>
@@ skipping 482 matching lines @@
             return usage(2, argv[0]);
             /*NOTREACHED*/
 
         }
     }
 
     if (help)
         return usage(0, argv[0]);
 
     if (version) {
-        fprintf(stderr, "Python %s\n", PY_VERSION);
+        printf("Python %s\n", PY_VERSION);
         return 0;
     }
 
     if (!Py_InspectFlag &&
         (p = Py_GETENV("PYTHONINSPECT")) && *p != '\0')
         Py_InspectFlag = 1;
     if (!saw_unbuffered_flag &&
         (p = Py_GETENV("PYTHONUNBUFFERED")) && *p != '\0')
         Py_UnbufferedStdioFlag = 1;
 
@@ skipping 301 matching lines @@
 void
 Py_GetArgcArgv(int *argc, wchar_t ***argv)
 {
     *argc = orig_argc;
     *argv = orig_argv;
 }
 
 #ifdef __cplusplus
 }
 #endif