2.20

• The fts64_* functions were added: glibc supports them since 2.23.
• The renameat2(2) function were added: glibc supports it since 2.28
  and mv command from coreutils 8.30 uses it.
• The chroot(8) wrapper and fakechroot(1) command can work with POSIX
  shell.
• The chroot(8) wrapper allows to chroot into root directory.
• The chroot(8) wrapper appends directories from
  FAKECHROOT_EXTRA_LIBRARY_PATH environment variable because some commands
  use runpath. The default value is /lib/systemd:/usr/lib/man-db for
  systemctl(1) and man(1) commands.
• The ldd(1) wrapper doesn't lose a leading slash in absolute paths.
• The fakechroot(1) command unsets CDPATH environment variable and swaps
  libfakeroot and libfakechroot in LD_PRELOAD environment variable if
  needed.
• Can be compiled with gcc 7.1 -Wformat-truncation.
• Can be compiled with clang 5.0 -O2 and -std=c11.