Fix failing test for sort.

The sorted values were not outputted using a newline.

src/sort/sort.rs

@@ -152,7 +152,7 @@ fn frac_compare(a: &String, b: &String) -> Ordering {
 #[inline(always)]
 fn print_sorted<S, T: Iterator<Item=S>>(iter: T) where S: std::fmt::Display {
     for line in iter {
-        print!("{}", line);
+        println!("{}", line);
     }
 }
 

test/sort.rs

@@ -1,8 +1,7 @@
-#![allow(unstable)]
+use std::fs::File;
-
+use std::io::Read;
-use std::old_io::process::Command;
+use std::path::Path;
-use std::old_io::File;
+use std::process::Command;
-use std::string::String;
 
 static PROGNAME: &'static str = "./sort";
 
@@ -34,15 +33,16 @@ fn numeric5() {
 fn numeric_helper(test_num: isize) {
     let mut cmd = Command::new(PROGNAME);
     cmd.arg("-n");
-    let po = match cmd.clone().arg(format!("{}{}{}", "numeric", test_num, ".txt")).output() {
+    let po = match cmd.arg(format!("{}{}{}", "numeric", test_num, ".txt")).output() {
         Ok(p) => p,
         Err(err) => panic!("{}", err),
     };
 
-    let answer = match File::open(&Path::new(format!("{}{}{}", "numeric", test_num, ".ans")))
+    let filename = format!("{}{}{}", "numeric", test_num, ".ans");
-            .read_to_end() {
+    let mut f = File::open(Path::new(&filename)).unwrap_or_else(|err| {
-        Ok(answer) => answer,
+        panic!("{}", err)
-        Err(err) => panic!("{}", err),
+    });
-    };
+    let mut answer = vec!();
-    assert_eq!(String::from_utf8(po.output).unwrap(), String::from_utf8(answer).unwrap());
+    let _ = f.read_to_end(&mut answer);
+    assert_eq!(String::from_utf8(po.stdout).unwrap(), String::from_utf8(answer).unwrap());
 }