Project/Real_code/book/ch06/ch06-sortdir.c
int
nodots(const struct dirent *dp)
{
	return (dp->d_name[0] != '.');
}
/* nodots --- ignore dot files, for use by scandir() */
ignore dot files, for use by scandir()
ignore dot files for use by scandir ()
int
nodots(const struct dirent *dp)
{
	return (dp->d_name[0] != '.');
}
int nodots ( const struct dirent * dp ) { return ( dp -> d_name [ 0 ] != ' ' ) ; }
nodots --- ignore dot files, for use by scandir()
nodots --- ignore dot files for use by scandir ()