Merge branch 'hooksets_const' of https://github.com/MaxKellermann/util-linux

* 'hooksets_const' of https://github.com/MaxKellermann/util-linux:
  schedutils: make pointer arrays const
  lsfd-cmd: make pointer arrays const
  libsmartcols: make pointer arrays const
  libfdisk: make pointer arrays const
  login-utils: make pointer arrays const
  libblkid: make pointer arrays const
  lib: make pointer arrays const
  term-utils: make pointer arrays const
  misc-utils: make pointer arrays const
  text-utils: make pointer arrays const
  sys-utils: make pointer arrays const
  disk-utils: make pointer arrays const
  include/c.h: pass const pointer array to print_features()
  libmount/hooks: make `hooksets` array const