Fixed warning in expr template.

Author: DanielKeep

CHANGELOG.md

@@ -9,6 +9,10 @@
 
 * Overhauled `README.md`.
 
+**Fixed:**
+
+* Warning in the new `expr` template.
+
 # v0.2.6
 
 **Fixed:**

src/consts.rs

@@ -44,7 +44,7 @@ fn main() {
         Ok(()) => None,
         Err(e) => {
             use std::io::{self, Write};
-            writeln!(io::stderr(), "Error: {}", e);
+            let _ = writeln!(io::stderr(), "Error: {}", e);
             Some(1)
         },
     };