Get pubsub numpat working

Author: PeterAdams-A

Sources/RediStack/Commands/PubSubCommands.swift

@@ -46,7 +46,7 @@ extension RedisCommand {
 
     /// [PUBSUB NUMPAT](https://redis.io/commands/pubsub#codepubsub-numpatcode)
     public static func pubsubNumpat() -> RedisCommand<Int> {
-        return .init(keyword: "PUBSUB NUMPAT", arguments: [])
+        return .init(keyword: "PUBSUB", arguments: [.init(bulk: "NUMPAT")])
     }
 
     /// [PUBSUB NUMSUB](https://redis.io/commands/pubsub#codepubsub-numsub-channel-1--channel-ncode)

Tests/RediStackIntegrationTests/Commands/PubSubCommandsTests.swift

@@ -190,6 +190,14 @@ final class RedisPubSubCommandsTests: RediStackIntegrationTestCase {
         self.waitForExpectations(timeout: 1)
     }
 
+    func test_pubSubNumpat() throws {
+        let queryConnection = try self.makeNewConnection()
+        defer { try? queryConnection.close().wait() }
+
+        let numPat = try queryConnection.send(.pubsubNumpat()).wait()
+        XCTAssertGreaterThanOrEqual(numPat, 0)
+    }
+
     func test_pubSubChannels() throws {
         let fn = #function
         let subscriber = try self.makeNewConnection()