rp: Mention mode in help text, fix comment

irc/help.go

@@ -217,12 +217,16 @@ Sends the text to the given targets as a NOTICE.`,
 	"npc": {
 		text: `NPC <target> <sourcenick> <text to be sent>
 		
-The NPC command is used to send a message to the target as the source.`,
+The NPC command is used to send a message to the target as the source.
+
+Requires the roleplay mode (+E) to be set on the target.`,
 	},
 	"npca": {
 		text: `NPCA <target> <sourcenick> <text to be sent>
 		
-The NPC command is used to send an action to the target as the source.`,
+The NPC command is used to send an action to the target as the source.
+
+Requires the roleplay mode (+E) to be set on the target.`,
 	},
 	"oper": {
 		text: `OPER <name> <password>

irc/roleplay.go

@@ -25,7 +25,7 @@ func sceneHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
 	return false
 }
 
-// NPC <target> <text to be sent>
+// NPC <target> <sourcenick> <text to be sent>
 func npcHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
 	target := msg.Params[0]
 	fakeSource := msg.Params[1]
@@ -44,7 +44,7 @@ func npcHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
 	return false
 }
 
-// NPCA <target> <text to be sent>
+// NPCA <target> <sourcenick> <text to be sent>
 func npcaHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
 	target := msg.Params[0]
 	fakeSource := msg.Params[1]