Improve guard so it works for no eof new line

indent/ps1.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'powershell') == -1
+
 " Vim indent file
 " Language:           Windows PowerShell
 " Maintainer:         Peter Provost <peter@provost.org>
@@ -19,4 +20,5 @@ inoremap <buffer> # X#
 
 let b:undo_indent = "setl si<"
 
+
 endif