Add NEWS for PR 33211

Author: nickrobinson251

NEWS.md

@@ -28,14 +28,14 @@ New library functions
 * The `tempname` function now takes a `cleanup::Bool` keyword argument defaulting to `true`, which causes the process to try to ensure that any file or directory at the path returned by `tempname` is deleted upon process exit ([#33090]).
 * The `readdir` function now takes a `join::Bool` keyword argument defaulting to `false`, which when set causes `readdir` to join its directory argument with each listed name ([#33113]).
 
-
 Standard library changes
 ------------------------
 
 * The methods of `mktemp` and `mktempdir` which take a function body to pass temporary paths to no longer throw errors if the path is already deleted when the function body returns ([#33091]).
 
-#### Libdl
+* Calling `show` or `repr` on an `undef`/`UndefInitializer()` array initializer now prints valid Julia code ([#33211]).
 
+#### Libdl
 
 #### LinearAlgebra