Ticket #47374 - flush.pl is not included in perl5
https://fedorahosted.org/389/ticket/47374
Reviewed by: nhosoi (Thanks!)
Branch: 389-ds-base-1.3.2
Fix Description: Change opt_b to BeginNum and opt_r to Random_Seed.
Have to specify option as j=i because -j has an integer argument.
Get rid of opt_j and use ZeroPad instead.
Platforms tested: RHEL6 x86_64
Flag Day: no
Doc impact: no
(cherry picked from commit f9ba01b4b9ce3881cf08433b0c43db93ab207507)