revlog: change _addrevision to return the new revision
The node is passed as argument already, so returning it is quite
pointless. The revision number on the other is useful as it decouples
the caller from the revlog internals.
Differential Revision: https://phab.mercurial-scm.org/D9880
{
// 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)
}