Add doc links to `std::os` extension traits

Add documentation links to the original type for various OS-specific
extension traits and normalize the language for introducing such traits.
Also, remove some outdated comments around the extension trait
definitions.

1 files changed, 6 insertions, 2 deletions

diff --git a/src/libstd/sys/unix/ext/process.rs b/src/libstd/sys/unix/ext/process.rs
index 7b4ec20d91f..21630ae9746 100644
--- a/src/libstd/sys/unix/ext/process.rs
+++ b/src/libstd/sys/unix/ext/process.rs
@@ -18,7 +18,9 @@ use process;
 use sys;
 use sys_common::{AsInnerMut, AsInner, FromInner, IntoInner};
 
-/// Unix-specific extensions to the `std::process::Command` builder
+/// Unix-specific extensions to the [`process::Command`] builder.
+///
+/// [`process::Command`]: ../../../../std/process/struct.Command.html
 #[stable(feature = "rust1", since = "1.0.0")]
 pub trait CommandExt {
     /// Sets the child process's user id. This translates to a
@@ -117,7 +119,9 @@ impl CommandExt for process::Command {
     }
 }
 
-/// Unix-specific extensions to `std::process::ExitStatus`
+/// Unix-specific extensions to [`process::ExitStatus`].
+///
+/// [`process::ExitStatus`]: ../../../../std/process/struct.ExitStatus.html
 #[stable(feature = "rust1", since = "1.0.0")]
 pub trait ExitStatusExt {
     /// Creates a new `ExitStatus` from the raw underlying `i32` return value of