Fix illegal syntax exposed by nightly change.

Fix #103
slog-rs · Jan 19, 2017 · 5548f91 · 5548f91
1 parent d1bddb5
commit 5548f91
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/_drain.rs b/src/_drain.rs
@@ -116,7 +116,7 @@ impl<D: Drain> Drain for Filter<D> {
 pub struct MapError<D: Drain, E> {
     drain: D,
     // eliminated dynamic dispatch, after rust learns `-> impl Trait`
-    map_fn: Box<(Fn(D::Error) -> E) + 'static+ Send+Sync>,
+    map_fn: Box<Fn(D::Error) -> E + 'static+ Send+Sync>,
 }
 
 impl<D: Drain, E> MapError<D, E> {