Apply smartparens {} fix to enh-ruby-mode too

Fixes:

  {|} => {
    |
  }

in enh-ruby-mode buffers too

Reported by @ar1a

modules/config/default/config.el

@@ -41,7 +41,7 @@
     (sp-pair "\"" nil :unless unless-list))
 
   ;; Major-mode specific fixes
-  (sp-local-pair 'ruby-mode "{" "}"
+  (sp-local-pair '(ruby-mode enh-ruby-mode) "{" "}"
                  :pre-handlers '(:rem sp-ruby-prehandler)
                  :post-handlers '(:rem sp-ruby-posthandler))