HTML export meta tag

[Scott Randby]

Hello,

When I export to HTML using Org 9.6.6, there is a /> closing the meta tag:

<meta name="author" content="Scott Randby" />

This did not happen when I used Org 9.4.6:

<meta name="author" content="Scott Randby">

I wouldn't care about this change, but when I validate the page code 
(https://validator.w3.org/) I get the following: "Info: Trailing slash on void 
elements has no effect and interacts badly with unquoted attribute values."

The documentation I've seen states that the code without the trailing slash is 
the proper code. I request that the org-html--build-meta-entry function in 
ox-html.el be changed to eliminate the trailing slash.

Scott Randby