Correct rpushx description (#2002)

Since Redis 4.0, RPUSHX can accept multiple elements as argument, but
the document and json file are not updated.
This PR updates it.

Signed-off-by: hwware <wen.hui.ware@gmail.com>

Author: hwware

src/commands.def

@@ -11189,7 +11189,7 @@ struct COMMAND_STRUCT serverCommandTable[] = {
 {MAKE_CMD("rpop","Returns and removes the last elements of a list. Deletes the list if the last element was popped.","O(N) where N is the number of elements returned","1.0.0",CMD_DOC_NONE,NULL,NULL,"list",COMMAND_GROUP_LIST,RPOP_History,1,RPOP_Tips,0,rpopCommand,-2,CMD_WRITE|CMD_FAST,ACL_CATEGORY_LIST,RPOP_Keyspecs,1,NULL,2),.args=RPOP_Args},
 {MAKE_CMD("rpoplpush","Returns the last element of a list after removing and pushing it to another list. Deletes the list if the last element was popped.","O(1)","1.2.0",CMD_DOC_DEPRECATED,"`LMOVE` with the `RIGHT` and `LEFT` arguments","6.2.0","list",COMMAND_GROUP_LIST,RPOPLPUSH_History,0,RPOPLPUSH_Tips,0,rpoplpushCommand,3,CMD_WRITE|CMD_DENYOOM,ACL_CATEGORY_LIST,RPOPLPUSH_Keyspecs,2,NULL,2),.args=RPOPLPUSH_Args},
 {MAKE_CMD("rpush","Appends one or more elements to a list. Creates the key if it doesn't exist.","O(1) for each element added, so O(N) to add N elements when the command is called with multiple arguments.","1.0.0",CMD_DOC_NONE,NULL,NULL,"list",COMMAND_GROUP_LIST,RPUSH_History,1,RPUSH_Tips,0,rpushCommand,-3,CMD_WRITE|CMD_DENYOOM|CMD_FAST,ACL_CATEGORY_LIST,RPUSH_Keyspecs,1,NULL,2),.args=RPUSH_Args},
-{MAKE_CMD("rpushx","Appends an element to a list only when the list exists.","O(1) for each element added, so O(N) to add N elements when the command is called with multiple arguments.","2.2.0",CMD_DOC_NONE,NULL,NULL,"list",COMMAND_GROUP_LIST,RPUSHX_History,1,RPUSHX_Tips,0,rpushxCommand,-3,CMD_WRITE|CMD_DENYOOM|CMD_FAST,ACL_CATEGORY_LIST,RPUSHX_Keyspecs,1,NULL,2),.args=RPUSHX_Args},
+{MAKE_CMD("rpushx","Appends one or more elements to a list only when the list exists.","O(1) for each element added, so O(N) to add N elements when the command is called with multiple arguments.","2.2.0",CMD_DOC_NONE,NULL,NULL,"list",COMMAND_GROUP_LIST,RPUSHX_History,1,RPUSHX_Tips,0,rpushxCommand,-3,CMD_WRITE|CMD_DENYOOM|CMD_FAST,ACL_CATEGORY_LIST,RPUSHX_Keyspecs,1,NULL,2),.args=RPUSHX_Args},
 /* pubsub */
 {MAKE_CMD("psubscribe","Listens for messages published to channels that match one or more patterns.","O(N) where N is the number of patterns to subscribe to.","2.0.0",CMD_DOC_NONE,NULL,NULL,"pubsub",COMMAND_GROUP_PUBSUB,PSUBSCRIBE_History,0,PSUBSCRIBE_Tips,0,psubscribeCommand,-2,CMD_PUBSUB|CMD_NOSCRIPT|CMD_LOADING|CMD_STALE|CMD_SENTINEL,0,PSUBSCRIBE_Keyspecs,0,NULL,1),.args=PSUBSCRIBE_Args},
 {MAKE_CMD("publish","Posts a message to a channel.","O(N+M) where N is the number of clients subscribed to the receiving channel and M is the total number of subscribed patterns (by any client).","2.0.0",CMD_DOC_NONE,NULL,NULL,"pubsub",COMMAND_GROUP_PUBSUB,PUBLISH_History,0,PUBLISH_Tips,0,publishCommand,3,CMD_PUBSUB|CMD_LOADING|CMD_STALE|CMD_FAST|CMD_MAY_REPLICATE|CMD_SENTINEL,0,PUBLISH_Keyspecs,0,NULL,2),.args=PUBLISH_Args},

src/commands/rpushx.json

@@ -1,6 +1,6 @@
 {
     "RPUSHX": {
-        "summary": "Appends an element to a list only when the list exists.",
+        "summary": "Appends one or more elements to a list only when the list exists.",
         "complexity": "O(1) for each element added, so O(N) to add N elements when the command is called with multiple arguments.",
         "group": "list",
         "since": "2.2.0",