Use relative path for addressing things in rust-lang/rust

Co-authored-by: Jacob Hoffman-Andrews <github@hoffman-andrews.com>

Author: notriddle

library/core/src/primitive_docs.rs

@@ -440,7 +440,7 @@ mod prim_char {}
 mod prim_unit {}
 
 // Required to make auto trait impls render.
-// See /src/librustdoc/passes/collect_trait_impls.rs:collect_trait_impls
+// See src/librustdoc/passes/collect_trait_impls.rs:collect_trait_impls
 #[doc(hidden)]
 impl () {}
 
@@ -958,7 +958,7 @@ mod prim_str {}
 mod prim_tuple {}
 
 // Required to make auto trait impls render.
-// See /src/librustdoc/passes/collect_trait_impls.rs:collect_trait_impls
+// See src/librustdoc/passes/collect_trait_impls.rs:collect_trait_impls
 #[doc(hidden)]
 impl<T> (T,) {}
 

library/std/src/primitive_docs.rs

@@ -440,7 +440,7 @@ mod prim_char {}
 mod prim_unit {}
 
 // Required to make auto trait impls render.
-// See /src/librustdoc/passes/collect_trait_impls.rs:collect_trait_impls
+// See src/librustdoc/passes/collect_trait_impls.rs:collect_trait_impls
 #[doc(hidden)]
 impl () {}
 
@@ -958,7 +958,7 @@ mod prim_str {}
 mod prim_tuple {}
 
 // Required to make auto trait impls render.
-// See /src/librustdoc/passes/collect_trait_impls.rs:collect_trait_impls
+// See src/librustdoc/passes/collect_trait_impls.rs:collect_trait_impls
 #[doc(hidden)]
 impl<T> (T,) {}