repl: add more information

This adds information about how to close the repl.

PR-URL: https://github.com/nodejs/node/pull/26240
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

lib/repl.js

@@ -572,7 +572,7 @@ function REPLServer(prompt,
         sawSIGINT = false;
         return;
       }
-      self.output.write('(To exit, press ^C again or type .exit)\n');
+      self.output.write('(To exit, press ^C again or ^D or type .exit)\n');
       sawSIGINT = true;
     } else {
       sawSIGINT = false;
@@ -1430,6 +1430,8 @@ function defineDefaultCommands(repl) {
         var line = `.${name}${cmd.help ? spaces + cmd.help : ''}\n`;
         this.outputStream.write(line);
       }
+      this.outputStream.write('\nPress ^C to abort current expression, ' +
+        '^D to exit the repl\n');
       this.displayPrompt();
     }
   });

test/parallel/test-repl-editor.js

@@ -45,7 +45,7 @@ function run({ input, output, event, checkTerminalCodes = true }) {
 const tests = [
   {
     input: '',
-    output: '\n(To exit, press ^C again or type .exit)',
+    output: '\n(To exit, press ^C again or ^D or type .exit)',
     event: { ctrl: true, name: 'c' }
   },
   {

test/parallel/test-repl.js

@@ -444,6 +444,8 @@ const errorTests = [
       /\.help/,
       /\.load/,
       /\.save/,
+      '',
+      'Press ^C to abort current expression, ^D to exit the repl',
       /'thefourtheye'/
     ]
   },