Call default subcommand with unknown options

index.js

@@ -761,7 +761,7 @@ Command.prototype.parseArgs = function(args, unknown) {
 
     // If there were no args and we have unknown options,
     // then they are extraneous and we need to error.
-    if (unknown.length > 0) {
+    if (unknown.length > 0 && !this.defaultExecutable) {
       this.unknownOption(unknown[0]);
     }
     if (this.commands.length === 0 &&

tests/command.executableSubcommand.default.test.js

@@ -10,9 +10,16 @@ test('when default subcommand and no command then call default', (done) => {
   });
 });
 
-test('when default subcommand and unrecognised argument then call default', (done) => {
-  childProcess.execFile(bin, ['unrecognised-argument'], { }, function(_error, stdout, stderr) {
-    expect(stdout).toBe('default\n');
+test('when default subcommand and unrecognised argument then call default with argument', (done) => {
+  childProcess.execFile(bin, ['an-argument'], { }, function(_error, stdout, stderr) {
+    expect(stdout).toBe("default\n[ 'an-argument' ]\n");
+    done();
+  });
+});
+
+test('when default subcommand and unrecognised option then call default with option', (done) => {
+  childProcess.execFile(bin, ['--an-option'], { }, function(_error, stdout, stderr) {
+    expect(stdout).toBe("default\n[ '--an-option' ]\n");
     done();
   });
 });

tests/fixtures/pm-default

@@ -1,2 +1,5 @@
 #!/usr/bin/env node
 console.log('default');
+if (process.argv.length > 2) {
+  console.log(process.argv.slice(2));
+}