Issue #18279: Add tests for idlelib/RstripExtension.py. Original patch by
Phil Webster. With that available, modify RstripExtension.py to stop deleting
null slices, which caused a file to be marked as changed when it was not.
diff --git a/Misc/NEWS b/Misc/NEWS
index 9bd5791..bbdd6b7 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -91,6 +91,10 @@
IDLE
----
+- Issue #18279: Format - Strip trailing whitespace no longer marks a file as
+ changed when it has not been changed. This fix followed the addition of a
+ test file originally written by Phil Webster (the issue's main goal).
+
- Issue #7136: In the Idle File menu, "New Window" is renamed "New File".
Patch by Tal Einat, Roget Serwy, and Todd Rovito.
@@ -104,6 +108,7 @@
- Issue #15392: Create a unittest framework for IDLE.
Preliminary patch by Rajagopalasarma Jayakrishnan
+ See Lib/idlelib/idle_test/README.txt for how to run Idle tests.
- Issue #14146: Highlight source line while debugging on Windows.