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-rw-r--r--runtime/doc/message.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/runtime/doc/message.txt b/runtime/doc/message.txt
index 864eea8f7f..97a1882159 100644
--- a/runtime/doc/message.txt
+++ b/runtime/doc/message.txt
@@ -240,6 +240,9 @@ format of the file. The file will not be marked unmodified. If you care
about the loss of information, set the 'fileencoding' option to another value
that can handle the characters in the buffer and write again. If you don't
care, you can abandon the buffer or reset the 'modified' option.
+If there is a backup file, when 'writebackup' or 'backup' is set, it will not
+be deleted, so you can move it back into place if you want to discard the
+changes.
*E302* >
Could not rename swap file