Bug 16951: Replace some more

Bug 16951: Replace some more

In order to avoid warnings in the logs, $cgi->param should be forced to
scalar context

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit e16ec2fcdb8bf67c507591386f94b9d024fec596)
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
(cherry picked from commit ae61f7c4f170e292781598c3123cc4a70863d933)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>