[issue29450] xattr functions aren't in os.supports_fd, os.supports_follow_symlinks

Change by Zackery Spytz : -- nosy: +ZackerySpytz nosy_count: 2.0 -> 3.0 pull_requests: +18014 stage: -> patch review pull_request: https://github.com/python/cpython/pull/18653 ___ Python tracker

[issue29450] xattr functions aren't in os.supports_fd, os.supports_follow_symlinks

New submission from Omar Sandoval: {get,list,remove,set}xattr all support fds and follow_symlinks, but they are not in the os.supports_fds and os.supports_follow_symlinks sets. The attached patch adds them. There are no HAVE_* features for the f and l variants of these syscalls since it's an