Update help.h again before Redis 6 GA.

src/help.h

@@ -146,57 +146,57 @@ struct commandHelp {
     { "CLIENT CACHING",
     "YES|NO",
     "Instruct the server about tracking or not keys in the next request",
-    9,
+    8,
     "6.0.0" },
     { "CLIENT GETNAME",
     "-",
     "Get the current connection name",
-    9,
+    8,
     "2.6.9" },
     { "CLIENT GETREDIR",
     "-",
     "Get tracking notifications redirection client ID if any",
-    9,
+    8,
     "6.0.0" },
     { "CLIENT ID",
     "-",
     "Returns the client ID for the current connection",
-    9,
+    8,
     "5.0.0" },
     { "CLIENT KILL",
     "[ip:port] [ID client-id] [TYPE normal|master|slave|pubsub] [ADDR ip:port] [SKIPME yes/no]",
     "Kill the connection of a client",
-    9,
+    8,
     "2.4.0" },
     { "CLIENT LIST",
     "[TYPE normal|master|replica|pubsub]",
     "Get the list of client connections",
-    9,
+    8,
     "2.4.0" },
     { "CLIENT PAUSE",
     "timeout",
     "Stop processing commands from clients for some time",
-    9,
+    8,
     "2.9.50" },
     { "CLIENT REPLY",
     "ON|OFF|SKIP",
     "Instruct the server whether to reply to commands",
-    9,
+    8,
     "3.2" },
     { "CLIENT SETNAME",
     "connection-name",
     "Set the current connection name",
-    9,
+    8,
     "2.6.9" },
     { "CLIENT TRACKING",
     "ON|OFF [REDIRECT client-id] [PREFIX prefix] [BCAST] [OPTIN] [OPTOUT] [NOLOOP]",
     "Enable or disable server assisted client side caching support",
-    9,
+    8,
     "6.0.0" },
     { "CLIENT UNBLOCK",
     "client-id [TIMEOUT|ERROR]",
     "Unblock a client blocked in a blocking command from a different connection",
-    9,
+    8,
     "5.0.0" },
     { "CLUSTER ADDSLOTS",
     "slot [slot ...]",
@@ -488,6 +488,11 @@ struct commandHelp {
     "Delete one or more hash fields",
     5,
     "2.0.0" },
+    { "HELLO",
+    "protover [AUTH username password] [SETNAME clientname]",
+    "switch Redis protocol",
+    8,
+    "6.0.0" },
     { "HEXISTS",
     "key field",
     "Determine if a hash field exists",
@@ -1071,7 +1076,7 @@ struct commandHelp {
     { "SWAPDB",
     "index1 index2",
     "Swaps two Redis databases",
-    8,
+    9,
     "4.0.0" },
     { "SYNC",
     "-",