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>

@@ -24,11 +24,11 @@
 # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
 
 #
-# Copyright (c) 2013 by Delphix. All rights reserved.
+# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
 #
 
 #
 # A function to determine if a given pool name has an entry in cachefile
 # returns 1 if the pool is not in the cache, 0 otherwise.

@@ -36,11 +36,11 @@
 
         # checking for the pool name in the strings output of
         # the given cachefile, default is /etc/zfs/zpool.cache
         typeset cachefile=${2:-$CPATH}
 
-        RESULT=$($STRINGS $cachefile | $GREP -w $1)
+        RESULT=$(strings $cachefile | grep -w $1)
         if [ -z "$RESULT" ]
         then
                 return 1
         fi
         return 0