fix: warnings for Scala2.13.0-RC1

Author: masahitojp

src/main/scala/com/redis/RedisClient.scala

@@ -113,8 +113,8 @@ class RedisClient(override val host: String, override val port: Int,
     database = RedisClient.extractDatabaseNumber(connectionUri),
     secret = Option(connectionUri.getUserInfo)
       .flatMap(_.split(':') match {
-        case Array(_, password, _*) ⇒ Some(password)
-        case _ ⇒ None
+        case Array(_, password, _*) => Some(password)
+        case _ => None
       })
   )
   override def toString: String = host + ":" + String.valueOf(port) + "/" + database

src/main/scala/com/redis/cluster/RedisCluster.scala

@@ -143,10 +143,10 @@ abstract class RedisCluster(hosts: ClusterNode*) extends RedisCommand {
   override def rename(oldkey: Any, newkey: Any)(implicit format: Format): Boolean = processForKey(oldkey)(_.rename(oldkey, newkey))
   override def renamenx(oldkey: Any, newkey: Any)(implicit format: Format): Boolean = processForKey(oldkey)(_.renamenx(oldkey, newkey))
   override def dbsize: Option[Long] =
-    Some(onAllConns(_.dbsize).foldLeft(0l)((a, b) => b.map(a+).getOrElse(a)))
+    Some(onAllConns(_.dbsize).foldLeft(0L)((a, b) => b.map(a+).getOrElse(a)))
   override def exists(key: Any)(implicit format: Format): Boolean = processForKey(key)(_.exists(key))
   override def del(key: Any, keys: Any*)(implicit format: Format): Option[Long] =
-    Some((key :: keys.toList).groupBy(nodeForKey).foldLeft(0l) { case (t,(n,ks)) => n.withClient{ client => client.del(ks.head,ks.tail:_*).map(t+).getOrElse(t)} })
+    Some((key :: keys.toList).groupBy(nodeForKey).foldLeft(0L) { case (t,(n,ks)) => n.withClient{ client => client.del(ks.head,ks.tail:_*).map(t+).getOrElse(t)} })
   override def getType(key: Any)(implicit format: Format): Option[String] = processForKey(key)(_.getType(key))
   override def expire(key: Any, expiry: Int)(implicit format: Format): Boolean =
     processForKey(key)(_.expire(key, expiry))

src/main/scala/com/redis/cluster/RedisShards.scala

@@ -80,10 +80,10 @@ abstract class RedisShards(val hosts: List[ClusterNode]) extends RedisCommand {
   override def rename(oldkey: Any, newkey: Any)(implicit format: Format): Boolean = processForKey(oldkey)(_.rename(oldkey, newkey))
   override def renamenx(oldkey: Any, newkey: Any)(implicit format: Format): Boolean = processForKey(oldkey)(_.renamenx(oldkey, newkey))
   override def dbsize: Option[Long] =
-    Some(onAllConns(_.dbsize).foldLeft(0l)((a, b) => b.map(a+).getOrElse(a)))
+    Some(onAllConns(_.dbsize).foldLeft(0L)((a, b) => b.map(a+).getOrElse(a)))
   override def exists(key: Any)(implicit format: Format): Boolean = processForKey(key)(_.exists(key))
   override def del(key: Any, keys: Any*)(implicit format: Format): Option[Long] =
-    Some((key :: keys.toList).groupBy(nodeForKey).foldLeft(0l) { case (t,(n,ks)) => n.withClient{ client => client.del(ks.head,ks.tail:_*).map(t+).getOrElse(t)} })
+    Some((key :: keys.toList).groupBy(nodeForKey).foldLeft(0L) { case (t,(n,ks)) => n.withClient{ client => client.del(ks.head,ks.tail:_*).map(t+).getOrElse(t)} })
   override def getType(key: Any)(implicit format: Format): Option[String] = processForKey(key)(_.getType(key))
   override def expire(key: Any, expiry: Int)(implicit format: Format): Boolean =
     processForKey(key)(_.expire(key, expiry))

src/main/scala/com/redis/ds/Deque.scala

@@ -60,7 +60,7 @@ abstract class RedisDeque[A](val blocking: Boolean = false, val timeoutInSecs: I
       brpop[String, A](timeoutInSecs, key).map(_._2)
     } else rpop[A](key) 
 
-  def size: Long = llen(key) getOrElse(0l)
+  def size: Long = llen(key) getOrElse(0L)
 
   def isEmpty: Boolean = size == 0