keepalive: implement _close_conn() so closes are known
Keepalives were not working on Python 3 because
http.client.HTTPResponse was refactored to call _close_conn()
instead of close(). Our custom close() is what returns inactive
connections to the available state.
We better support Python 3 by implementing a _close_conn().
Differential Revision: https://phab.mercurial-scm.org/D5720
{
// Enforcing
"eqeqeq" : true, // true: Require triple equals (===) for comparison
"forin" : true, // true: Require filtering for..in loops with obj.hasOwnProperty()
"freeze" : true, // true: prohibits overwriting prototypes of native objects such as Array, Date etc.
"nonbsp" : true, // true: Prohibit "non-breaking whitespace" characters.
"undef" : true, // true: Require all non-global variables to be declared (prevents global leaks)
// Environments
"browser" : true // Web Browser (window, document, etc)
}