TheDgtl/Stargate-Bukkit — comment on commit f33586ced8600c9847738cae87ac48d216d9e804
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By TheNoid:

Any glitches related to PEX due to this plugin have been fixed now. Mixed-case permissions are handled fine. PEX (and all the other modern permissions handlers) no longer supports old Permissions. The warning in this code has no purpose any more.

And why the hell are you still trying to support old Permissions?!