[one/zero] Fix possible backport typos

[stfx]

What bug does the patch fix? What features does the patch add?

Fixes a few possible typos which could have happened when backporting.

For which repository revision was the patch created?

s1333 (mangos-one)

Who has been writing this patch? Please include either forum user names or email addresses.

Me

http://pastebin.com/M4BeNcac

I am pretty sure that the if (!target || (target != this && !target->isAlive())) change is correct but not sure about the inverted SPELL_AURA_PROC_FAILED and SPELL_AURA_PROC_OK. The first changed chunk could also be applied to mangos zero if its correct.