Check in Andreas Gruenbacher's nfs v4 acl tests into the xfstests suite.

Merge of master-melb:xfs-cmds:32058a by kenmcd.

  Run all the tests in xfstests/nfs4acl

nfs4acl/chmod.test

@@ -0,0 +1,31 @@
+$ mkdir d
+$ cd d
+
+$ whoami
+> root
+
+$ touch a
+	
+Neet to have write_acl permission to chmod or set the acl:
+	$ su bin
+	$ chmod 666 a
+	> chmod: changing permissions of `a': Operation not permitted
+	$ nfs4acl --set 'bin:rwM::allow' a
+	> a: Operation not permitted
+	
+$ su
+$ nfs4acl --set 'bin:rwm::allow' a
+	
+Can set the acl now:
+	$ su bin
+	$ nfs4acl --set 'bin:rwm::allow' a
+	
+A chmod limits the permissions to the specified mode, which always disables
+write_acl:
+	$ chmod 666 a
+	$ nfs4acl --set 'bin:rwm::allow' a
+	> a: Operation not permitted
+
+$ su
+$ cd ..
+$ rm -rf d