Use short array deconstruction syntax.

Author: derrabus

Store/MemcachedStore.php

@@ -94,7 +94,7 @@ public function putOffExpiration(Key $key, $ttl)
 
         $token = $this->getUniqueToken($key);
 
-        list($value, $cas) = $this->getValueAndCas($key);
+        [$value, $cas] = $this->getValueAndCas($key);
 
         $key->reduceLifetime($ttl);
         // Could happens when we ask a putOff after a timeout but in luck nobody steal the lock
@@ -126,7 +126,7 @@ public function delete(Key $key)
     {
         $token = $this->getUniqueToken($key);
 
-        list($value, $cas) = $this->getValueAndCas($key);
+        [$value, $cas] = $this->getValueAndCas($key);
 
         if ($value !== $token) {
             // we are not the owner of the lock. Nothing to do.

Tests/Store/SemaphoreStoreTest.php

@@ -60,7 +60,7 @@ private function getOpenedSemaphores()
         if ('------ Semaphore Status --------' !== $lines[0]) {
             throw new \Exception('Failed to extract list of opened semaphores. Expected a Semaphore status, got '.implode(\PHP_EOL, $lines));
         }
-        list($key, $value) = explode(' = ', $lines[1]);
+        [$key, $value] = explode(' = ', $lines[1]);
         if ('used arrays' !== $key) {
             throw new \Exception('Failed to extract list of opened semaphores. Expected a "used arrays" key, got '.implode(\PHP_EOL, $lines));
         }