From 871910a2c6e8624d4ebaa08ce6201b661f8c25f3 Mon Sep 17 00:00:00 2001
From: Taiki Endo <te316e89@gmail.com>
Date: Sun, 24 Feb 2019 21:59:44 +0900
Subject: Use ? in some macros

---
 src/libsyntax_ext/proc_macro_server.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/libsyntax_ext')

diff --git a/src/libsyntax_ext/proc_macro_server.rs b/src/libsyntax_ext/proc_macro_server.rs
index 699539b62f5..4c4b33c0442 100644
--- a/src/libsyntax_ext/proc_macro_server.rs
+++ b/src/libsyntax_ext/proc_macro_server.rs
@@ -69,7 +69,7 @@ impl FromInternal<(TreeAndJoint, &'_ ParseSess, &'_ mut Vec<Self>)>
         };
 
         macro_rules! tt {
-            ($ty:ident { $($field:ident $(: $value:expr)*),+ $(,)* }) => (
+            ($ty:ident { $($field:ident $(: $value:expr)*),+ $(,)? }) => (
                 TokenTree::$ty(self::$ty {
                     $($field $(: $value)*,)*
                     span,
-- 
cgit 1.4.1-3-g733a5