MFC r319714, r319854

r319714:
Add tests for ln(1)

* Verify that when creating a hard link to a symbolic link, '-L' option
  creates a hard link to the target of the symbolic link
* Verify that when creating a hard link to a symbolic link, '-P' option
  creates a hard link to the symbolic link itself
* Verify that if the target file already exists, '-f' option unlinks it so
  that link may occur
* Verify that if the target file or directory is a symbolic link, '-shf'
  option prevents following the link
* Verify that if the target file or directory is a symbolic link, '-snf'
  option prevents following the link
* Verify that '-s' option creates a symbolic link
* Verify that '-w' option produces a warning if the source of a symbolic
  link does not currently exist

Submitted by:	shivansh
Reviewed by:	asomers, ngie
Sponsored by:	Google, Inc (GSoC 2017)
Differential Revision:	https://reviews.freebsd.org/D11084

r319854:
bin/ln: Set umask appropriately before creating files for testing

These changes were missed in D11084

Submitted by:	shivansh
Reviewed by:	asomers
X-MFC-With:	319714
Sponsored by:	Google, Inc (GSoC 2017)
Differential Revision:	https://reviews.freebsd.org/D11158

1 files changed, 2 insertions, 0 deletions

diff --git a/etc/mtree/BSD.tests.dist b/etc/mtree/BSD.tests.dist
index ee2cd6d..920043e 100644
--- a/etc/mtree/BSD.tests.dist
+++ b/etc/mtree/BSD.tests.dist
@@ -16,6 +16,8 @@
         ..
         expr
         ..
+        ln
+        ..
         ls
         ..
         mv