7290 ZFS test suite needs to control what utilities it can run
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>

@@ -22,18 +22,22 @@
 #
 # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
 
+#
+# Copyright (c) 2016 by Delphix. All rights reserved.
+#
+
 . $STF_SUITE/include/libtest.shlib
 
 #
 # Get the checksum and size of the file.
 #
 function get_cksum # <file path>
 {
-        return $($CKSUM $1 | $AWK '{print $1 $2}')
+        return $(cksum $1 | awk '{print $1 $2}')
 }
 
 #
 # Compare the check sum of target files with the original file
 #