v3.0
tests: test for the no-newline-at-EOF bug
tests: use path_prepend_ consistently; remove unnecessary VERBOSE check
tests: pull latest help-version from gzip
build: update gnulib submodule to latest
tests: use original no-newline-at-eof test, but with -U1, not -U2
tests: add the first script; hook up gnulib-tests