Rollup merge of rust-lang#29035 - rutsky:patch-6, r=steveklabnik

r? @steveklabnik

The link is broken here: <https://doc.rust-lang.org/std/io/#types>.

Looks like crate documentation generator uses only first paragraph of the module documentation and
so doesn't resolve the link defined below.

Probably this behaviour of the documentation generator should be considered as a bug and should be reported.

src/libstd/io/error.rs

@@ -17,9 +17,8 @@ use option::Option::{self, Some, None};
 use result;
 use sys;
 
-/// A specialized [`Result`][result] type for I/O operations.
-///
-/// [result]: ../result/enum.Result.html
+/// A specialized [`Result`](../result/enum.Result.html) type for I/O 
+/// operations.
 ///
 /// This type is broadly used across `std::io` for any operation which may
 /// produce an error.