Update for logging moving to liblog

See rust-lang/rust#12791

Author: cadencemarseille

pkg.rs

@@ -6,7 +6,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 #[allow(unused_must_use)];
+#[feature(phase)];
 
+#[phase(syntax, link)] extern crate log;
 extern crate rustc;
 
 use rustc::driver::driver::host_triple;

src/pcre/mod.rs

@@ -8,8 +8,10 @@
 
 #[crate_id = "pcre#0.1"];
 #[crate_type = "lib"];
+#[feature(phase)];
 
 extern crate collections;
+#[phase(syntax, link)] extern crate log;
 
 use collections::treemap::{TreeMap};
 use collections::enum_set::{CLike, EnumSet};