https://github.com/mpeterv/luacheck/pull/81#issuecomment-261099606
> If you really want to use bleeding-edge version you should get the
> rockspec from master branch, not a fixed commit ...
> The correct way to install from a specific commit is cloning that
> commit and running "luarocks make" from project directory. The reason
> is that running "install" or "build" on an scm rockspec fetches
> sources from master but uses build description from the rockspec
> itself, which may be outdated.
Vim creates these scripts in test1 depending on what build features
are enabled so that tests that use these features are skiped if
necessary. Because Neovim only has one type of build (and the features
+eval, +windows, and +multi-byte are enabled in this build) they are
not necessary.
