Bugzilla bug 145128: fixed a typo error in sec_pkcs5_rc4().  Also simplfied two other similar constructs.  r=relyea.
Bugzilla bug 145128: fixed a typo error in sec_pkcs5_rc4().  Also simplfied
two other similar constructs.  r=relyea.

thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss