rem: -i\tSpecify input file. Otherwise, input comed from stdin\n\
add: -i\tSpecify input file. Otherwise, input comes from stdin\n\
context: void usage(char *message){    fprintf(stderr,"Usage: %s [-emdcn] [-i inputfile] [-o outputfile] [-u calid]\n",program_name);    fprintf(stderr,"-e\tInput data is encapsulated in a MIME Message \n\-m\tInput is raw iCal \n\-i\tSpecify input file. Otherwise, input comed from stdin\n\-o\tSpecify file to save incoming message to\n\-d\tSpecify database to send data to\n\-u\tSet the calid to store the data to\n\-n\tSend errors to stdout instead of organizer\n\");}