Fix the decoding of the temperature

The lower nibble at offset 0x0C contains part of the dive time and only
the higher nibble contains part of the temperature. Since this extra
nibble ended up as the second decimal figure, the error is actually very
small and nobody really noticed the mistake.

Author: jefdriesen

src/cressi_edy_parser.c

@@ -154,7 +154,7 @@ cressi_edy_parser_get_field (dc_parser_t *abstract, dc_field_type_t type, unsign
 			gasmix->nitrogen = 1.0 - gasmix->oxygen - gasmix->helium;
 			break;
 		case DC_FIELD_TEMPERATURE_MINIMUM:
-			*((double *) value) = (bcd2dec (p[0x0B]) * 100 + bcd2dec (p[0x0C])) / 100.0;
+			*((double *) value) = (bcd2dec (p[0x0B]) * 10 + ((p[0x0C] & 0xF0) >> 4)) / 10.0;
 			break;
 		default:
 			return DC_STATUS_UNSUPPORTED;