Fix RuboCop offense Layout/SpaceInsideStringInterpolation (#39111, #40137).

git-svn-id: https://svn.redmine.org/redmine/trunk@22771 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/wiki_formatting/common_mark/helper.rb

@@ -26,7 +26,7 @@ module Redmine
 
           javascript_tag(
             "var wikiToolbar = new jsToolBar(document.getElementById('#{field_id}')); " \
-            "wikiToolbar.setHelpLink('#{escape_javascript help_wiki_syntax_path }'); " \
+            "wikiToolbar.setHelpLink('#{escape_javascript help_wiki_syntax_path}'); " \
             "wikiToolbar.setPreviewUrl('#{escape_javascript preview_url}'); " \
             "wikiToolbar.draw();"
           )