bpo-30860: Fix a refleak. (#3567)

Resolves bpo-31420.

(This was accidentally reverted when in #3565.)
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index d1d4a69..df814fb 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -113,7 +113,10 @@
     err = -1;
     for (;;) {
         ret = PyRun_InteractiveOneObject(fp, filename, flags);
-        _PY_DEBUG_PRINT_TOTAL_REFS();
+#ifdef Py_REF_DEBUG
+        if (_PyDebug_XOptionShowRefCount() == Py_True)
+            _PyDebug_PrintTotalRefs();
+#endif
         if (ret == E_EOF) {
             err = 0;
             break;