Issue #15533: Clarify docs and add tests for subprocess.Popen()'s cwd argument.
diff --git a/Misc/NEWS b/Misc/NEWS
index 7347f50..d22347d 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -597,6 +597,9 @@
 Documentation
 -------------
 
+- Issue #15533: Clarify docs and add tests for subprocess.Popen()'s cwd
+  argument.
+
 - Issue #16036: Improve documentation of built-in int()'s signature and
   arguments.