Merge branch '2019wk19' of https://github.com/kerolasa/util-linux

Merge branch '2019wk19' of https://github.com/kerolasa/util-linux

* '2019wk19' of https://github.com/kerolasa/util-linux:
  lib/colors: remove redundant if statement
  wipefs: fix variable / function shadowing [cppcheck]
  sulogin: fix variable / function shadowing [cppcheck]
  lscpu: remove redundant condition check [cppcheck]
  libmount: avoid possible null pointer dereference [cppcheck]
  lib/mangle: fix possible null pointer dereference [cppcheck]
  sfdisk: remove unnecessary size check [cppcheck]