Server version disclosure on [jenkins.brew.sh]

How it was found

Hello Homebrew security team,

I know this is a low severity issue but I thought to get you in notice will be best. The site jenkins.brew.sh discloses the Nginx server version.

Impact The information is can be used by attacker for further finding of exploits and information gathering.

curl -i jenkins.brew.sh
HTTP/1.1 301 Moved Permanently
Server: nginx/1.6.2
Date: Tue, 18 Apr 2017 18:59:21 GMT
Content-Type: text/html
Content-Length: 184
Connection: keep-alive
Location: https://jenkins.brew.sh/

<html>
<head><title>301 Moved Permanently</title></head>
<body bgcolor="white">
<center><h1>301 Moved Permanently</h1></center>
<hr><center>nginx/1.6.2</center>
</body>
</html>

Fix In Ngnix configuration set:

server_tokens off;

Thanks