The variables "[fRequestShutdown](https://github.com/okcashpro/okcash/blob/6be76e39c2e028d5c231d1f6e20393ca8dd98e0b/src/init.cpp#L68)" and "[fReopenDebugLog](https://github.com/okcashpro/okcash/blob/6be76e39c2e028d5c231d1f6e20393ca8dd98e0b/src/state.cpp#L37)" should use [the data type "sig_atomic_t"](http://en.cppreference.com/w/cpp/utility/program/sig_atomic_t) (instead of "bool"), shouldn't they?