$lSince = microtime( true ); // lock timestamp
- return new ScopedCallback( function() use ( $key, $lSince, $expiry ) {
+ return new ScopedCallback( function () use ( $key, $lSince, $expiry ) {
$latency = .050; // latency skew (err towards keeping lock present)
$age = ( microtime( true ) - $lSince + $latency );
if ( ( $age + $latency ) >= $expiry ) {