Issue #28488: shutil.make_archive() no longer adds entry "./" to ZIP archive.
diff --git a/Lib/shutil.py b/Lib/shutil.py
index 26dcfde..388906f 100644
--- a/Lib/shutil.py
+++ b/Lib/shutil.py
@@ -450,9 +450,10 @@
             with zipfile.ZipFile(zip_filename, "w",
                                  compression=zipfile.ZIP_DEFLATED) as zf:
                 path = os.path.normpath(base_dir)
-                zf.write(path, path)
-                if logger is not None:
-                    logger.info("adding '%s'", path)
+                if path != os.curdir:
+                    zf.write(path, path)
+                    if logger is not None:
+                        logger.info("adding '%s'", path)
                 for dirpath, dirnames, filenames in os.walk(base_dir):
                     for name in sorted(dirnames):
                         path = os.path.normpath(os.path.join(dirpath, name))