Update ntpath functions for platform independence

Author: serhiy-storchaka

Misc/NEWS.d/next/Library/2026-08-08-23-30-00.gh-issue-85681.ntabs.rst

@@ -1,3 +1,3 @@
-:func:`ntpath.abspath` on non-Windows platforms now strips trailing dots and
+:func:`!ntpath.abspath` on non-Windows platforms now strips trailing dots and
 spaces like the Windows path normalization does.  This makes
-:func:`ntpath.relpath` and other functions based on it platform independent.
+:func:`!ntpath.relpath` and other functions based on it platform independent.