add news about the context manager for Mailbox

sblondon · sblondon · commit 382e57faca44 · 2017-12-15T09:35:51.000+01:00
diff --git a/Misc/NEWS.d/next/Library/2017-12-15-09-32-57.bpo-32234.XaOkhR.rst b/Misc/NEWS.d/next/Library/2017-12-15-09-32-57.bpo-32234.XaOkhR.rst
@@ -0,0 +1,2 @@
+Mailbox instances can be used in the context manager. The Mailbox is locked
+at enter and unlocked and closed at exit.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+Mailbox instances can be used in the context manager. The Mailbox is locked`
	`2`	`+at enter and unlocked and closed at exit.`