[master] 731f8a2 Be more concise

[Guillaume Quintard]

commit 731f8a205eec74ab77e060953470499a671af38f
Author: Guillaume Quintard <guillaume at varnish-software.com>
Date:   Mon Dec 18 16:10:08 2017 +0100

    Be more concise

diff --git a/doc/sphinx/reference/varnishd.rst b/doc/sphinx/reference/varnishd.rst
index 6992531..463f76c 100644
--- a/doc/sphinx/reference/varnishd.rst
+++ b/doc/sphinx/reference/varnishd.rst
@@ -295,8 +295,7 @@ The following storage types are available:
 -s <file,path[,size[,granularity[,advice]]]>
 
   The file backend stores data in a file on disk. The file will be
-  accessed using mmap. Note that this storage is reset every time ``varnishd``
-  starts.
+  accessed using mmap. Note that this storage provide no cache persistence.
 
   The path is mandatory. If path points to a directory, a temporary
   file will be created in that directory and immediately unlinked. If