repl: add support for multiline history

doc/api/repl.md

@@ -605,7 +605,7 @@ The `replServer.displayPrompt()` method readies the REPL instance for input
 from the user, printing the configured `prompt` to a new line in the `output`
 and resuming the `input` to accept new input.
 
-When multi-line input is being entered, an ellipsis is printed rather than the
+When multi-line input is being entered, a pipe `'|'` is printed rather than the
 'prompt'.
 
 When `preserveCursor` is `true`, the cursor placement will not be reset to `0`.
@@ -657,6 +657,14 @@ A list of the names of all Node.js modules, e.g., `'http'`.
 <!-- YAML
 added: v0.1.91
 changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/57400
+    description: The multi-line indicator is now "|" instead of "...".
+                 Added support for multi-line history.
+                 It is now possible to "fix" multi-line commands with syntax errors
+                 by visiting the history and editing the command.
+                 When visiting the multiline history from an old node version,
+                 the multiline structure is not preserved.
   - version:
      - v13.4.0
      - v12.17.0