Change `last-login` command to show player name in output (#10263)

builtin/game/chat.lua

@@ -1070,10 +1070,10 @@ core.register_chatcommand("last-login", {
 		local pauth = core.get_auth_handler().get_auth(param)
 		if pauth and pauth.last_login and pauth.last_login ~= -1 then
 			-- Time in UTC, ISO 8601 format
-			return true, "Last login time was " ..
+			return true, param.."'s last login time was " ..
 				os.date("!%Y-%m-%dT%H:%M:%SZ", pauth.last_login)
 		end
-		return false, "Last login time is unknown"
+		return false, param.."'s last login time is unknown"
 	end,
 })