--- a/doc/html/logic_programming/plans.html
+++ b/doc/html/logic_programming/plans.html
@@ -119,12 +119,12 @@
 13  withdraw
 14      use withdraw(($who, $acct_type)) taking (amount)
 15      with
-16          print "withdraw", amount, "from", $who, $acct_type
+16          print("withdraw", amount, "from", $who, $acct_type)
 
 17  deposit
 18      use deposit(($who, $acct_type)) taking (amount)
 19      with
-20          print "deposit", amount, "to", $who, $acct_type
+20          print("deposit", amount, "to", $who, $acct_type)
 
 21  transfer_ach1
 22      use transfer_ach($from_acct, ($bank, $who, $acct_type)) taking (amount)
@@ -134,7 +134,7 @@
 26          deposit((central_accts, ach_send_acct))
 27              $$(amount)
 28      with
-29          print "send", amount, "to bank", $bank, "acct", $who, $acct_type
+29          print("send", amount, "to bank", $bank, "acct", $who, $acct_type)
 
 30  transfer_ach2
 31      use transfer_ach($from_acct, $to_acct) taking (amount)
@@ -149,7 +149,7 @@
 39  get_ach
 40      use get_ach(($bank, $who, $acct_type)) taking (amount)
 41      with
-42          print "get", amount, "from bank", $bank, "acct", $who, $acct_type
+42          print("get", amount, "from bank", $bank, "acct", $who, $acct_type)
 </pre>
 <div class="section" id="how-the-plan-functions-are-generated-for-this-example">
 <h3>How the Plan Functions are Generated for This Example</h3>
@@ -317,7 +317,7 @@
 
   <div id="last-modified">
     Page last modified
-    Tue, Jan 13 2009.
+    Wed, Mar 25 2009.
 
   </div>