childio: t_false: use type aliases

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/src/childio.rs b/src/childio.rs
index 1d6f9323df694fa5c6768abaa526186fe003d287..401db3cece2617155af3e3b1883d178f7d412160 100644 (file)
--- a/src/childio.rs
+++ b/src/childio.rs
@@ -136,7 +136,7 @@ fn t_false() {
     run_pair(c, "cat".into()).unwrap()
   };
 
-  let one = | f: &dyn Fn(&mut ChildIo<_>, &mut dyn Read) -> io::Result<()> |{
+  let one = | f: &dyn Fn(&mut Stdin, &mut Stdout) -> io::Result<()> |{
     let (mut w, mut r) = setup();
 
     let r = f(&mut w, &mut r);