Rpm and zip docs HTML meta tag discrepancy

There is difference between rpm and zip doc html files on rhel7 for tomcat7 and tomcat8. In "head" section the "meta" tag in zip looks like this:

<meta http-equiv="Content-Type" content="text/html" charset="ISO-8859-1">

whether for rpm this is how it looks like:

<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">

Difference is in fact that in zip docs there is "charset" used as a separate attribute whether in rpm docs "charset" is part of "content" attribute.

According to this, "charset" as a separate attribute is allowed since HTML5. As in DOCTYPE is specified HTML 4.01 I presume that content in rpm docs is what we want regarding this discrepancy.

This is realy minor issue but it appears in our diff tool making more false-positive differencies.