std::rt::io -> std::io

cat/cat.rs

@@ -15,7 +15,7 @@
 extern mod extra;
 
 use std::os;
-use std::rt::io::{stdin, stderr, stdout, File, result};
+use std::io::{stdin, stderr, stdout, File, result};
 use extra::getopts::groups;
 
 fn main() {

env/env.rs

@@ -192,7 +192,7 @@ fn main() {
         [ref prog, ..args] => {
             let exit = std::run::process_status(prog.as_slice(), args.as_slice());
             match exit {
-                std::rt::io::process::ExitStatus(status) => std::os::set_exit_status(status),
+                std::io::process::ExitStatus(status) => std::os::set_exit_status(status),
                 _ => std::os::set_exit_status(1)
             }
         }

printenv/printenv.rs

@@ -14,7 +14,7 @@
 extern mod extra;
 
 use std::os;
-use std::rt::io::stderr;
+use std::io::stderr;
 use extra::getopts::groups;
 
 fn main() {

whoami/whoami.rs

@@ -29,7 +29,6 @@ extern {
 }
 
 #[fixed_stack_segment]
-#[deny(cstack)]
 unsafe fn getusername() -> ~str {
     let passwd: *c_passwd = getpwuid(geteuid());
 

yes/yes.rs

@@ -14,7 +14,7 @@
 extern mod extra;
 
 use std::os;
-use std::rt::io::stderr;
+use std::io::stderr;
 use extra::getopts::groups;
 
 fn main() {