[otrs] upgrade from 3.3.10 to 4.0.2

Hi all I am following the manual, but at the end I have some problems with the httpd restart. It fails due the perl Apache2::Return (Can't locate Apache2/Reload.pm), but when I try to install it (like suggest form the otrs.CheckModules.pl) with "yum install perl(Apache2::Reload)" I don't find it anywhere. Moreover, that module should be optional.... OS: Centos 6.5 Any idea ? Regards Marco