Description
Quoting the elisp manual, emphasis my own:
‘Version’
If you wish to record version numbers for the individual Lisp
program, put them in this line. Lisp files distributed with Emacs
generally do not have a ‘Version’ header, since the version number
of Emacs itself serves the same purpose. If you are distributing a
collection of multiple files, we recommend not writing the version
in every file, but only the main one.
haskell-indent.el seems to be the only file in the project with a Version header. This should instead be haskell-mode.el, because I imagine that is the "main" one.
This became apparent when I used the shiny package-install-file[0] in development Emacs, and I ended up with haskell-indent in my package list. Otherwise the install was flawless. Neat!
Anyways, fixing the headers is a small change and I can make a PR if you want.