io/fs: don't use absolute path in DirEntry.Name doc

Fixes #47485

Change-Id: I64ac00905a403b7594c706141679051a93058a31
Reviewed-on: https://go-review.googlesource.com/c/go/+/338889
Trust: Ian Lance Taylor <[email protected]>
Run-TryBot: Ian Lance Taylor <[email protected]>
TryBot-Result: Go Bot <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>

Author: ianlancetaylor

src/io/fs/fs.go

@@ -86,7 +86,7 @@ type File interface {
 type DirEntry interface {
 	// Name returns the name of the file (or subdirectory) described by the entry.
 	// This name is only the final element of the path (the base name), not the entire path.
-	// For example, Name would return "hello.go" not "/home/gopher/hello.go".
+	// For example, Name would return "hello.go" not "home/gopher/hello.go".
 	Name() string
 
 	// IsDir reports whether the entry describes a directory.