this fix was intended to be amended in before release, but somehow got
missed.
- mlock2 syscall wrapper
- memfd_create syscall wrapper
- explicit_bzero function
-- header-level support for new linux features through 4.18 ??
+- header-level support for new linux features through 4.17
- wcsftime now supports padding specifier extensions
- dynamic linker's reclaim_gaps now works on fdpic archs
- getaddrinfo now honors AI_ADDRCONFIG