Add Batuhan Taskaya as a contributor to news entries

Author: isidentical

Doc/whatsnew/3.9.rst

@@ -124,7 +124,7 @@ multiline indented output.
 Added the :func:`ast.unparse` as a function in the :mod:`ast` module that can
 be used to unparse an :class:`ast.AST` object and produce a string with code
 that would produce an equivalent :class:`ast.AST` object when parsed.
-(Contributed by Pablo Galindo in :issue:`38870`.)
+(Contributed by Pablo Galindo and Batuhan Taskaya in :issue:`38870`.)
 
 asyncio
 -------

Misc/NEWS.d/next/Library/2019-11-20-22-43-48.bpo-38870.rLVZEv.rst

@@ -1,4 +1,4 @@
 Expose :func:`ast.unparse` as a function of the :mod:`ast` module that can
 be used to unparse an :class:`ast.AST` object and produce a string with code
 that would produce an equivalent :class:`ast.AST` object when parsed. Patch
-by Pablo Galindo.
+by Pablo Galindo and Batuhan Taskaya.