Added randomize test option to ./check

Merge of master-melb:xfs-cmds:24664a by kenmcd.

  Added comment about the randomize '-r' option.

randomize.awk

@@ -0,0 +1,23 @@
+# Copyright (c) 2005 Silicon Graphics, Inc.  All Rights Reserved.
+
+# randomize stdin.
+
+function randomize(array, N) {
+  for(i = 0; i < N; i++) {
+    j = int(rand()*N)
+    if ( i != j) {
+    tmp = array[i]
+    array[i] = array[j]
+    array[j] = tmp
+    }
+  }
+return
+}
+
+{
+    srand()
+    for (i = 0; i < NF; i++ ) array[i] = $(i+1)
+    randomize(array, NF)
+    for (i = 0; i < NF; i++) printf("%s ", array[i])
+}
+