errmsg_iam − tell errmsg library the name of the program
#include <libowfat/errmsg.h>
void errmsg_iam(const char *progname);
Use this function to set the program name.
This function is usually called directly at the start of main() and given argv[0] as argument.
This is important for batch processing, so the observer can tell which program the error message came from.
errmsg(7)