churn: continue to use AsciiExt

We can remove its usage once we require Rust 1.23 or newer.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/config.rs b/src/config.rs
index cf50f29..f1222b5 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,3 +1,4 @@
+#[allow(deprecated, unused_imports)]
 use std::ascii::AsciiExt;
 use std::borrow::ToOwned;
 use std::env;