Prevent extraneous newline from --stdin --fix (#460)

Author: charlesbjohnson

Diff for: cli-main.js

@@ -157,7 +157,7 @@ if (options.nodeVersion) {
 		if (options.fix) {
 			const result = xo.lintText(stdin, options).results[0];
 			// If there is no output, pass the stdin back out
-			console.log(result.output || stdin);
+			process.stdout.write(result.output || stdin);
 			return;
 		}
 

Diff for: test/cli-main.js

@@ -17,9 +17,9 @@ test('fix option', async t => {
 
 test('fix option with stdin', async t => {
 	const {stdout} = await main(['--fix', '--stdin'], {
-		input: 'console.log()\n'
+		input: 'console.log()'
 	});
-	t.is(stdout.trim(), 'console.log();');
+	t.is(stdout, 'console.log();');
 });
 
 test('stdin-filename option with stdin', async t => {