fix typo preventing full exception to be displayed in log

closes gh-9901

oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/web/OAuth2AuthorizationRequestRedirectFilter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -221,7 +221,7 @@ public class OAuth2AuthorizationRequestRedirectFilter extends OncePerRequestFilt
 
 	private void unsuccessfulRedirectForAuthorization(HttpServletRequest request, HttpServletResponse response,
 			Exception ex) throws IOException {
-		this.logger.error(LogMessage.format("Authorization Request failed: %s", ex, ex));
+		this.logger.error(LogMessage.format("Authorization Request failed: %s", ex), ex);
 		response.sendError(HttpStatus.INTERNAL_SERVER_ERROR.value(),
 				HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase());
 	}