Rewrite SECITEM_ItemsAreEqual to be faster when item lengths are not equal and to not crash if an item contains a NULL data pointer.
Rewrite SECITEM_ItemsAreEqual to be faster when item lengths are not
equal and to not crash if an item contains a NULL data pointer.

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