Bug with board count in omahacmpn.c

[Dome5881]

Found a small bug in one of the examples - in the omahacmpn.c running it goes over a different number of boards when used with 2 players and defining a board. (Shows 946 instead of 820 Boards.)

Inserting
parseArgs(argc, argv);

CardMask_OR(gDeadCards, gDeadCards, gCommonCards);
deadCards = gDeadCards;
for (i=0; i<gNPlayers; i++) {
    CardMask_OR(deadCards, deadCards, gPlayerCards[i]);
};

seems to fix the issue