Fix line 342 to write correct meta http-equiv="Content-Type" content

Now the charset var is not correctly set (cause the var is not being expanded) in meta http-equiv="Content-Type" content=
Now: <meta http-equiv="Content-Type" content="text/html; charset=" {$charset}">
Fixed so it now takes the var valor 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">