Remove :void() statements for PHP version compat

Author: danielbachhuber

tests/test-arguments.php

@@ -59,7 +59,7 @@ public static function pushToArgv($args)
     /**
      * Set up valid flags and options
      */
-    public function setUp(): void
+    public function setUp()
     {
         self::clearArgv();
         self::pushToArgv('my_script.php');

tests/test-cli.php

@@ -4,7 +4,7 @@
 use WP_CLI\Tests\TestCase;
 class testsCli extends TestCase {
 
-	function setUp(): void {
+	function setUp() {
 		// Reset enable state
 		\cli\Colors::enable( null );
 

tests/test-table-ascii.php

@@ -25,7 +25,7 @@ class Test_Table_Ascii extends TestCase {
 	/**
 	 * Creates instance and redirects STDOUT to temporary file
 	 */
-	public function setUp(): void {
+	public function setUp() {
 		$this->_mockFile = tempnam(sys_get_temp_dir(), 'temp');
 		$resource = fopen($this->_mockFile, 'wb');
 		Streams::setStream('out', $resource);