Run rustfmt
diff --git a/src/generics.rs b/src/generics.rs
index 916ebb7..dc3dd0d 100644
--- a/src/generics.rs
+++ b/src/generics.rs
@@ -86,7 +86,8 @@
         let id = Ident::new(t);
         if !id.as_ref().starts_with('\'') {
             panic!("lifetime name must start with apostrophe as in \"'a\", \
-                   got {:?}", id.as_ref());
+                   got {:?}",
+                   id.as_ref());
         }
         Lifetime { ident: id }
     }