Document the change whereby EMACSLOCKDIR is no longer used on Windows.

From Jason Rumney.

diff --git a/etc/NEWS b/etc/NEWS
index 9f12148ac3dccc78c6e9f46dbc3bbde08c67d049..ac03adf7e69d428f79286c8a66c74cbe97b8a3c4 100644 (file)
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -47,6 +47,12 @@ description of aspects specific to the Mac.
 \f
 * Changes in Emacs 21.1
 
++++
+** The environment variable `EMACSLOCKDIR' is no longer used on MS-Windows.
+This environment variable was used when creating lock files.  Emacs on
+MS-Windows does not use this variable anymore.  This change was made
+before Emacs 21.1, but wasn't documented until now.
+
 ** Flyspell mode has various new options.  See the `flyspell' Custom
 group.