Fix endless loop if reading unsupported ACL type.

Apply fix from vendor's master branch.

References:
https://github.com/libarchive/libarchive/commit/d8b9dbd

Reported on:	freebsd-current@
Obtained from:	libarchive

contrib/libarchive/libarchive/archive_read_disk_entry_from_file.c

@@ -485,6 +485,7 @@ setup_acl_posix1e(struct archive_read_disk *a,
 			ae_tag = ARCHIVE_ENTRY_ACL_OTHER;
 		} else {
 			/* Skip types that libarchive can't support. */
+			s = acl_get_entry(acl, ACL_NEXT_ENTRY, &acl_entry);
 			continue;
 		}