Get parse.js in sync with generated code

The generated keysymdef.js was recently converted to ES modules,
but the generating script was overlooked.

utils/parse.js

@@ -80,23 +80,20 @@ var out = "// This file describes mappings from Unicode codepoints to the keysym
 "// (and optionally, key names) expected by the RFB protocol\n" +
 "// How this file was generated:\n" +
 "// " + process.argv.join(" ") + "\n" +
-"var keysyms = (function(){\n" +
-"    \"use strict\";\n" +
-"    var keynames = {keysyms};\n" +
-"    var codepoints = {codepoints};\n" +
+"var keynames = {keysyms};\n" +
+"var codepoints = {codepoints};\n" +
 "\n" +
-"    function lookup(k) { return k ? {keysym: k, keyname: keynames ? keynames[k] : k} : undefined; }\n" +
-"    return {\n" +
-"        fromUnicode : function(u) {\n" +
-"            var keysym = codepoints[u];\n" +
-"            if (keysym === undefined) {\n" +
-"                keysym = 0x01000000 | u;\n" +
-"            }\n" +
-"            return lookup(keysym);\n" +
-"        },\n" +
-"        lookup : lookup\n" +
-"    };\n" +
-"})();\n";
+"function lookup(k) { return k ? {keysym: k, keyname: keynames ? keynames[k] : k} : undefined; }\n" +
+"export default {\n" +
+"    fromUnicode : function(u) {\n" +
+"        var keysym = codepoints[u];\n" +
+"        if (keysym === undefined) {\n" +
+"            keysym = 0x01000000 | u;\n" +
+"        }\n" +
+"        return lookup(keysym);\n" +
+"    },\n" +
+"    lookup : lookup\n" +
+"};\n";
 out = out.replace('{keysyms}', use_keynames ? JSON.stringify(keysyms) : "null");
 out = out.replace('{codepoints}', JSON.stringify(codepoints));