Improve guard so it works for no eof new line

ftplugin/scala.xpt.vim

@@ -1,5 +1,6 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'scala') == -1
 
+
 XPTemplate priority=lang
 
 XPTvar $BRif ' '
@@ -28,4 +29,5 @@ trait `derived^`trait^Component extends `trait^Component {
 		`body2^
 	}
 }
+
 endif