copies: correctly skip directories that have already been considered
Previously, `if dsrc in invalid` would never be true, since we added
`dsrc +"/"` to invalid, not `dsrc` itself. Since it's much more common for
individual files (not whole directories) to be moved, it seemed cleaner to
delay appending the "/" until we know we have some directory moves to
actually consider.
I haven't benchmarked this, but I imagine this is a mild performance win.
Differential Revision: https://phab.mercurial-scm.org/D4284
{
// 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)
}