Closes #15173: Tidied up copyright statements and removed pythonv references.
diff --git a/Mac/Tools/pythonw.c b/Mac/Tools/pythonw.c
index ebee531..f5cdff5 100644
--- a/Mac/Tools/pythonw.c
+++ b/Mac/Tools/pythonw.c
@@ -159,7 +159,7 @@
     status = _NSGetExecutablePath(path, &size);
     if (status == 0) {
         if (realpath(path, real_path) != NULL) {
-            setenv("__PYTHONV_LAUNCHER__", real_path, 1);
+            setenv("__PYVENV_LAUNCHER__", real_path, 1);
         }
     }