Update to new macro url syntax

Author: GuillaumeGomez

src/libcore/fmt/mod.rs

@@ -792,7 +792,7 @@ pub trait UpperExp {
 /// assert_eq!(output, "Hello world!");
 /// ```
 ///
-/// Please note that using [`write!`][write_macro] might be preferrable. Example:
+/// Please note that using [`write!`] might be preferrable. Example:
 ///
 /// ```
 /// use std::fmt::Write;
@@ -803,7 +803,7 @@ pub trait UpperExp {
 /// assert_eq!(output, "Hello world!");
 /// ```
 ///
-/// [write_macro]: ../../std/macro.write!.html
+/// [`write!`]: ../../std/macro.write.html
 #[stable(feature = "rust1", since = "1.0.0")]
 pub fn write(output: &mut Write, args: Arguments) -> Result {
     let mut formatter = Formatter {

src/libstd/thread/mod.rs

@@ -151,7 +151,7 @@
 //!
 //! [`Cell`]: ../cell/struct.Cell.html
 //! [`RefCell`]: ../cell/struct.RefCell.html
-//! [`thread_local!`]: ../macro.thread_local!.html
+//! [`thread_local!`]: ../macro.thread_local.html
 //! [`with`]: struct.LocalKey.html#method.with
 
 #![stable(feature = "rust1", since = "1.0.0")]