--- loncom/xml/run.pm	2006/03/16 15:47:37	1.58
+++ loncom/xml/run.pm	2012/12/18 18:27:43	1.61
@@ -1,6 +1,6 @@
 package Apache::run;
 #
-# $Id: run.pm,v 1.58 2006/03/16 15:47:37 albertel Exp $
+# $Id: run.pm,v 1.61 2012/12/18 18:27:43 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -135,7 +135,7 @@ sub run {
 	}
 	my $errormsg='<pre>'.&HTML::Entities::encode($error,'<>&"').' '.
 	    &HTML::Entities::encode($innererror,'<>&"').
-	    '</pre> occured while running <pre>';
+	    '</pre> occurred while running <pre>';
 	$code=&HTML::Entities::encode($code,'<>&"');
 	if ($innererror=~/line (\d+)/) {
 	    my $linenumber=$1;
@@ -168,11 +168,11 @@ sub dump {
 		    $line.='$'.$symname.'='.$safeeval->reval('$'.$symname)."\n";
 		}
 	    }	
-	    if ($safeeval->reval('defined(@'.$symname.')')) {
+	    if ($safeeval->reval('@'.$symname)) {
 		$line.='@'.$symname.'=('.
 		    $safeeval->reval('join(",",@'.$symname.')').")"."\n";
 	    }
-	    if ($safeeval->reval('defined(%'.$symname.')')) {
+	    if ($safeeval->reval('%'.$symname)) {
 		$line.='%'.$symname.'=(';
 		$line.=$safeeval->reval('join(",",map { $_."=>".$'.
 					$symname.'{$_} } sort keys %'.
@@ -191,3 +191,29 @@ sub dump {
 
 1;
 __END__;
+
+=pod
+
+=head1 NAME
+
+Apache::run.pm
+
+=head1 SYNOPSIS
+
+Used to prevent poorly written problems from
+causing lingering after effects
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+
+=head1 NOTABLE SUBROUTINES
+
+=over
+
+=item run(), dump(), evaluate()
+
+=back
+
+=cut
+