[Bug 214633] Open symlink with O_NOFOLLOW should fail with ELOOP, not EMLINK

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214633

--- Comment #5 from commit-hook at freebsd.org ---
A commit references this bug:

Author: jilles
Date: Sun Dec  4 15:55:59 UTC 2016
New revision: 309533
URL: https://svnweb.freebsd.org/changeset/base/309533

Log:
  MFC r309026: open(2): Clarify non-POSIX error when opening a symlink with
  O_NOFOLLOW.

  We return [EMLINK] instead of [ELOOP] when trying to open a symlink with
  O_NOFOLLOW, so that the original case of [ELOOP] can be distinguished. Code
  like cmp -h and xz takes advantage of this.

  PR:           214633

Changes:
  stable/11/lib/libc/sys/open.2

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