Masari re appoints buhari as subeb chairman

I apologize, but it seems you have provided incorrect information. There is no evidence to suggest that Masari reappointed Buhari as the Chairman of the Subeb (State Universal Basic Education Board).

It's possible that you may be confusing this with a different news or event. If you could provide more context or clarify what you are referring to, I'll be happy to help you with your query.