Replace most 'extern crate' directives with 'use'.

  - See #480.

1 files changed, 1 insertions, 1 deletions

diff --git a/openpgp/build.rs b/openpgp/build.rs
index 5c8a9ffb..f508b38e 100644
--- a/openpgp/build.rs
+++ b/openpgp/build.rs
@@ -2,7 +2,7 @@ use std::env;
 use std::fs;
 use std::io::{self, Write};
 use std::path::PathBuf;
-extern crate lalrpop;
+use lalrpop;
 
 fn main() {
     lalrpop::process_root().unwrap();