Fix minor typo in init.if

I sent this patch to the ML a month ago (http://oss.tresys.com/pipermail/refpolicy/2014-September/007388.html) but at that time, the policy was broken and this patch has not been merged.

Now that the policy has been fixed, init.if has been modified and the line numbers of the patch are no longer correct.  As the diff context does not give enough information for git to apply the patch correctly from the email, I resubmit the patch as a github PR.

Cheers,
Nicolas