Manual talk:Interface/Searchresulttext

Utility of Searchresulttext?
Hi,

I don't understand what explained in this manual page: when I search a word in Special:search, I don't see the text of Mediawiki:Searchresulttext. So could you explain what the utility of this system message? Thanks by advance, Automatik (talk) 23:52, 13 November 2013 (UTC)