MFV r313071:

MFV r313071:
Sync libarchive with vendor

Vendor changes (relevant to FreeBSD):
- support extracting NFSv4 ACLs from Solaris tar archives
- bugfixes and optimizations in the ACL code
- multiple fixes in the test suite
- typo and other small bugfixes

Security fixes:
- cab reader: endless loop when parsing MSZIP signature (OSS-Fuzz 335)
- LHA reader: heap-buffer-overflow in lha_read_file_header_1()
  (CVE-2017-5601)
- LZ4 reader: null-pointer dereference in lz4_filter_read_legacy_stream()
  (OSS-Fuzz 453)
- mtree reader: heap-buffer-overflow in detect_form() (OSS-Fuzz 421, 443)
- WARC reader: heap-buffer-overflow in xstrpisotime() (OSS-Fuzz 382, 458)

Memory leak fixes:
- ACL support: free memory allocated by acl_get_qualifier()
- disk writer: missing free in create_filesystem_object()
- file reader: fd leak (Coverity 1016755)
- gnutar writer: fix free in archive_write_gnutar_header()
  (Coverity 101675)
- iso 9660 reader: missing free in parse_file_info()
  (partial Coverity 1016754)
- program reader: missing free in __archive_read_program()
- program writer: missing free in __archive_write_program_free()
- xar reader: missing free in xar_cleanup()
- xar reader: missing frees in expat_xmlattr_setup()
  (Coverity 1229979-1229981)
- xar writer: missing free in file_free()
- zip reader: missing free in zip_read_local_file_header()

MFC after:	1 week
X-MFC with:	310866, 310868, 310870, 311899