doc: update fs.realpath documentation

sinkhaha · bmeck · commit 4f3bd623c21b · 2024-06-22T09:11:01.000-05:00
PR-URL: nodejs#48170 Fixes: nodejs#45067 Reviewed-By: James M Snell <jasnell@gmail.com>
diff --git a/doc/api/fs.md b/doc/api/fs.md
@@ -4115,6 +4115,9 @@ the path returned will be passed as a {Buffer} object.
 If `path` resolves to a socket or a pipe, the function will return a system
 dependent name for that object.
 
+A path that does not exist results in an ENOENT error.
+`error.path` is the absolute file path.
+
 ### `fs.realpath.native(path[, options], callback)`
 
 <!-- YAML
