[e] (0) Fix an error in the minlength description
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=27070
Affected topics: HTML

git-svn-id: https://svn.whatwg.org/webapps@8855 340c8d12-0b0e-0410-8428-c7bf67bfef74