2 files changed, 2 insertions, 2 deletions
diff --git a/Lib/test/libregrtest/runtest.py b/Lib/test/libregrtest/runtest.py
index 558f209..9338b28 100644
--- a/Lib/test/libregrtest/runtest.py
+++ b/Lib/test/libregrtest/runtest.py
@@ -327,7 +327,7 @@ def cleanup_test_droppings(test_name, verbose):
                                f"directory nor file")
 
         if verbose:
-            print_warning("%r left behind %s %r" % (test_name, kind, name))
+            print_warning(f"{test_name} left behind {kind} {name!r}")
             support.environment_altered = True
 
         try:
diff --git a/Lib/test/libregrtest/utils.py b/Lib/test/libregrtest/utils.py
index 40faed8..0368694 100644
--- a/Lib/test/libregrtest/utils.py
+++ b/Lib/test/libregrtest/utils.py
@@ -62,7 +62,7 @@ def printlist(x, width=70, indent=4, file=None):
 
 
 def print_warning(msg):
-    print(f"Warning -- {msg}", file=sys.stderr, flush=True)
+    support.print_warning(msg)
 
 
 orig_unraisablehook = None