Merge branch 'travis-test' of https://github.com/rudimeier/util-linux

* 'travis-test' of https://github.com/rudimeier/util-linux:
  misc: fix some warnings
  tests: handle non glibc error message for fallocate
  tests: use stdbuf when stderr and stdout is randomly ordered
  build-sys: fix library order when linking
  tests: avoid diff of diffs
  tests: grep's short option -A is more portable