Update runtime files
diff --git a/runtime/doc/recover.txt b/runtime/doc/recover.txt
index 0bab64a..34f7f18 100644
--- a/runtime/doc/recover.txt
+++ b/runtime/doc/recover.txt
@@ -1,4 +1,4 @@
-*recover.txt* For Vim version 8.2. Last change: 2020 Mar 24
+*recover.txt* For Vim version 8.2. Last change: 2020 May 09
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -125,12 +125,12 @@
command:
*:pre* *:preserve* *E313* *E314*
-: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
- be deleted for this buffer when Vim exits and the
- buffer is still loaded |cpo-&|.
+:pre[serve] Write all text for the current buffer into its swap
+ file. 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 be deleted for this buffer when Vim
+ exits and the buffer is still loaded |cpo-&|.
A Vim swap file can be recognized by the first six characters: "b0VIM ".
After that comes the version number, e.g., "3.0".