Two small fixes for the Windows implementation (#661)
Two small fixes for the Windows implementation (#661)

* Check if NOMIMMAX is defined before defining it

* Pass char* for a %s format in a snprintf call

bitcoin-core/leveldb,bitcoin-core/leveldb,google/leveldb,dwing4g/leveldb,matehat/leveldb,fastogt/leveldb,matehat/leveldb,likema/leveldb,bitcoin-core/leveldb,dwing4g/leveldb,google/leveldb,matehat/leveldb,likema/leveldb,cmumford/leveldb,fastogt/leveldb,dwing4g/leveldb,cmumford/leveldb