Improve guard so it works for no eof new line

autoload/db/adapter/ecto.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'elixir') == -1
+
 let s:path = expand('<sfile>:h')
 let s:cmd = join(['mix', 'run', '--no-start', '--no-compile', shellescape(s:path.'/get_repos.exs')])
 
@@ -19,4 +20,5 @@ endfunction
 function! db#adapter#ecto#complete_opaque(url) abort
     return map(s:repo_list(), 'v:val[0]')
 endfunction
+
 endif