Fix permissions setting script.

I had the permissions bits backwards the first time around. This
actually sets w+xw.

App/App/Console/Installer.php

@@ -64,7 +64,25 @@ public static function createAppConfig($dir, $io) {
  * @return void
  */
 	public static function setTmpPermissions($dir, $io) {
-		$walker = function ($dir, $perms) use ($io, &$walker) {
+		/**
+		 * Change the permissions on a path and output the results.
+		 */
+		$changePerms = function ($path, $perms, $io) {
+			// Get current permissions in decimal format so we can bitmask it.
+			$currentPerms = octdec(substr(sprintf('%o', fileperms($path)), -4));
+			if (($currentPerms & $perms) == $perms) {
+				return;
+			}
+
+			$res = chmod($path, $currentPerms | $perms);
+			if ($res) {
+				$io->write('Permissions set on ' . $path);
+			} else {
+				$io->write('Failed to set permissions on ' . $path);
+			}
+		};
+
+		$walker = function ($dir, $perms, $io) use (&$walker, $changePerms) {
 			$files = array_diff(scandir($dir), ['.', '..']);
 			foreach ($files as $file) {
 				$path = $dir . '/' . $file;
@@ -73,24 +91,14 @@ public static function setTmpPermissions($dir, $io) {
 					continue;
 				}
 
-				// Get current permissions in decimal format so we can bitmask it.
-				$currentPerms = octdec(substr(sprintf('%o', fileperms($path)), -4));
-				if (($currentPerms & $perms) == $perms) {
-					continue;
-				}
-
-				$res = chmod($path, $currentPerms | $perms);
-				if ($res) {
-					$io->write('Permissions set on ' . $path);
-				} else {
-					$io->write('Failed to set permissions on ' . $path);
-				}
-				$walker($path, $perms);
+				$changePerms($path, $perms, $io);
+				$walker($path, $perms, $io);
 			}
 		};
 
-		$worldWritable = bindec('0110000000');
-		$walker($dir . '/tmp', $worldWritable);
+		$worldWritable = bindec('0000000111');
+		$walker($dir . '/tmp', $worldWritable, $io);
+		$changePerms($dir . '/tmp', $worldWritable, $io);
 	}
 
 }