sprintf.c:57
static char
sign_bits(base, p)
    int base;
    char *p;
{
    char c = '.';

    switch (base) {
      case 16:
	if (*p == 'X') c = 'F';
	else c = 'f';
	break;
      case 8:
	c = '7'; break;
      case 2:
	c = '1'; break;
    }
    return c;
}
