Use the error function rather than die for reporting config errors

orangelogin.pl

@@ -28,13 +28,13 @@ while (<CONFIG>)
 close CONFIG;
 
 $username = $options{'username'};
-die "username not set" unless defined($username);
+error("username not set") unless defined($username);
 
 $password = $options{'password'};
-die "password not set" unless defined($password);
+error("password not set") unless defined($password);
 
 $downloaddir = $options{'downloaddir'};
-die "downloaddir not set" unless defined($downloaddir);
+error("downloaddir not set") unless defined($downloaddir);
 
 print "Fetching homepage\n";
 $mech->get("https://www.orange.co.uk/");