Patch #1048820 from Stefan Wehr: add insert-mode editing to Textbox.
Fix an off-by-one error I noticed.
diff --git a/Misc/NEWS b/Misc/NEWS
index e988fc7..fcc56b4 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -390,6 +390,10 @@
- #1837: The queue module now also supports a LIFO queue and a priority queue.
+- Patch #1048820: Add insert-mode editing to curses.textpad.Textbox
+ (patch by Stefan Wehr). Also, fix an off-by-one bug in
+ Textbox.gather().
+
- Issue #1831: ctypes now raises a TypeError if conflicting positional
and named arguments are passed to a Structure or Union initializer.
When too many positional arguments are passed, also a TypeError is