Function clear_pattern_list

dir.c:1016–1027

* Frees memory within pl which was allocated for exclude patterns and * the file buffer. Does not free pl itself. */

 * the file buffer.  Does not free pl itself.
 */
void clear_pattern_list(struct pattern_list *pl)
{
	int i;

	for (i = 0; i < pl->nr; i++)
		free(pl->patterns[i]);
	free(pl->patterns);
	clear_pattern_entry_hashmap(&pl->recursive_hashmap);
	clear_pattern_entry_hashmap(&pl->parent_hashmap);

	memset(pl, 0, sizeof(*pl));
}

static void trim_trailing_spaces(char *buf)
{