MFC r313572,313782
Sync libarchive with vendor.
MFC r313572:
Vendor bugfixes: cpio reader sanity fix (OSS-Fuzz 504) WARC reader sanity fixes (OSS-Fuzz 511, 526, 532, 552) mtree reader time parsing fix (OSS-Fuzz 538) XAR reader memleak fix (OSS-Fuzz 551)
MFC r313782:
Vendor changes: Make SCHILY.acl.ace header more compact (NFSv4 ACLs) Vendor bugfixes: zip reader integer parsing fix (OSS-Fuzz 556) spelling fixes (issue #863)