tools: refactor license2rtf.js to ESM

Makefile

@@ -1096,7 +1096,7 @@ endif
 		$(MACOSOUTDIR)/dist/npm/usr/local/lib/node_modules
 	unlink $(MACOSOUTDIR)/dist/node/usr/local/bin/npm
 	unlink $(MACOSOUTDIR)/dist/node/usr/local/bin/npx
-	$(NODE) tools/license2rtf.js < LICENSE > \
+	$(NODE) tools/license2rtf.mjs < LICENSE > \
 		$(MACOSOUTDIR)/installer/productbuild/Resources/license.rtf
 	cp doc/osx_installer_logo.png $(MACOSOUTDIR)/installer/productbuild/Resources
 	pkgbuild --version $(FULLVERSION) \

tools/license2rtf.js → tools/license2rtf.mjs

@@ -1,8 +1,7 @@
-'use strict';
-
-const assert = require('assert');
-const Stream = require('stream');
-
+import assert from 'node:assert';
+import Stream from 'node:stream';
+import { pipeline } from 'node:stream/promises';
+import { stdin, stdout } from 'node:process';
 
 /*
  * This filter consumes a stream of characters and emits one string per line.
@@ -287,19 +286,14 @@ class RtfGenerator extends Stream {
   }
 }
 
-
-const stdin = process.stdin;
-const stdout = process.stdout;
-const lineSplitter = new LineSplitter();
-const paragraphParser = new ParagraphParser();
-const unwrapper = new Unwrapper();
-const rtfGenerator = new RtfGenerator();
-
 stdin.setEncoding('utf-8');
 stdin.resume();
 
-stdin.pipe(lineSplitter);
-lineSplitter.pipe(paragraphParser);
-paragraphParser.pipe(unwrapper);
-unwrapper.pipe(rtfGenerator);
-rtfGenerator.pipe(stdout);
+await pipeline(
+  stdin,
+  new LineSplitter(),
+  new ParagraphParser(),
+  new Unwrapper(),
+  new RtfGenerator(),
+  stdout,
+);

vcbuild.bat

@@ -420,9 +420,9 @@ if "%use_x64_node_exe%"=="true" (
     set exit_code=1
     goto exit
   )
-  %x64_node_exe% tools\license2rtf.js < LICENSE > %config%\license.rtf
+  %x64_node_exe% tools\license2rtf.mjs < LICENSE > %config%\license.rtf
 ) else (
-  %node_exe% tools\license2rtf.js < LICENSE > %config%\license.rtf
+  %node_exe% tools\license2rtf.mjs < LICENSE > %config%\license.rtf
 )
 
 if errorlevel 1 echo Failed to generate license.rtf&goto exit