gh-141044: Silence NEWS Sphinx nit for _thread.stack_size

Author: KingLizard1020

Misc/NEWS.d/next/Library/2026-09-14-20-45-00.gh-issue-141044.Ks8nQm.rst

@@ -1,7 +1,7 @@
 Fix a reference leak when creating a :class:`threading.Thread` after
 setting a small custom stack size with :func:`threading.stack_size` in
 debug and sanitizer builds. Those builds need extra C stack, so
-:func:`_thread.stack_size` now requires 6 stack margins (as ThreadSanitizer
+:func:`!_thread.stack_size` now requires 6 stack margins (as ThreadSanitizer
 already did). Sizes that previously appeared to work (for example 127 KiB
 on 64-bit debug/ASan builds) now raise :exc:`ValueError`. Release builds
 are unchanged. Patch by Kailash Nelson.