[master] 63467b7 Document addition of std.file_exists() in Upgrading to 5.2.

[Geoff Simmons]

commit 63467b791537f87cbdcc9a74f52051fdd0a98818
Author: Geoff Simmons <geoff at uplex.de>
Date:   Wed Sep 13 12:23:29 2017 +0200

    Document addition of std.file_exists() in Upgrading to 5.2.

diff --git a/doc/sphinx/whats-new/upgrading-5.2.rst b/doc/sphinx/whats-new/upgrading-5.2.rst
index 4a7bf2f..b8c3388 100644
--- a/doc/sphinx/whats-new/upgrading-5.2.rst
+++ b/doc/sphinx/whats-new/upgrading-5.2.rst
@@ -56,7 +56,7 @@ XXX: more VCL changes ...
 vmod_std
 ~~~~~~~~
 
-* *XXX: any changes in VMOD std?*
+Added :ref:`func_file_exists`.
 
 New VMODs in the standard distribution
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~