Remove trailing whitespace

common/framework/drivers/push/base.php

@@ -13,13 +13,13 @@ abstract class Base implements PushInterface
 	 * The configuration is stored here.
 	 */
 	protected $_config = null;
-	
+
 	/**
 	 * Config keys used by this driver are stored here.
 	 */
 	protected static $_required_config = array();
 	protected static $_optional_config = array();
-	
+
 	/**
 	 * Direct invocation of the constructor is not permitted.
 	 */
@@ -27,10 +27,10 @@ abstract class Base implements PushInterface
 	{
 		$this->_config = $config;
 	}
-	
+
 	/**
 	 * Create a new instance of the current Push driver, using the given settings.
-	 * 
+	 *
 	 * @param array $config
 	 * @return PushInterface
 	 */
@@ -38,54 +38,54 @@ abstract class Base implements PushInterface
 	{
 		return new static($config);
 	}
-	
+
 	/**
 	 * Get the human-readable name of this Push driver.
-	 * 
+	 *
 	 * @return string
 	 */
 	public static function getName(): string
 	{
 		return class_basename(get_called_class());
 	}
-	
+
 	/**
 	 * Get the list of configuration fields required by this Push driver.
-	 * 
+	 *
 	 * @return array
 	 */
 	public static function getRequiredConfig(): array
 	{
 		return static::$_required_config;
 	}
-	
+
 	/**
 	 * Get the list of configuration fields optionally used by this Push driver.
-	 * 
+	 *
 	 * @return array
 	 */
 	public static function getOptionalConfig(): array
 	{
 		return static::$_optional_config;
 	}
-	
+
 	/**
 	 * Check if the current Push driver is supported on this server.
-	 * 
+	 *
 	 * This method returns true on success and false on failure.
-	 * 
+	 *
 	 * @return bool
 	 */
 	public static function isSupported(): bool
 	{
 		return false;
 	}
-	
+
 	/**
 	 * Send a message.
-	 * 
+	 *
 	 * This method returns true on success and false on failure.
-	 * 
+	 *
 	 * @param object $message
 	 * @param array $tokens
 	 * @return \stdClass