Update runtime files
diff --git a/runtime/doc/recover.txt b/runtime/doc/recover.txt
index af06736..0bab64a 100644
--- a/runtime/doc/recover.txt
+++ b/runtime/doc/recover.txt
@@ -1,4 +1,4 @@
-*recover.txt* For Vim version 8.2. Last change: 2019 May 07
+*recover.txt* For Vim version 8.2. Last change: 2020 Mar 24
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -125,7 +125,7 @@
command:
*:pre* *:preserve* *E313* *E314*
-:pre[serve] Write all text for all buffers into swap file. The
+:pre[serve] Write all text for all buffers into swap files. The
original file is no longer needed for recovery.
This sets a flag in the current buffer. When the '&'
flag is present in 'cpoptions' the swap file will not