nmea_cksum.c verification and  re-calculation of checksum
nmea_cksum.c verification and  re-calculation of checksum

OpenSeaMap/logger-oseam-0183,OpenSeaMap/logger-oseam-0183,OpenSeaMap/logger-oseam-0183,OpenSeaMap/logger-oseam-0183,OpenSeaMap/logger-oseam-0183,OpenSeaMap/logger-oseam-0183