Here is a part of zh_CN-pocket.lang

commands.gamemode.success.other=将 %2$s 的游戏模式设置为 %3$s #
commands.gamemode.success.self=将自己的游戏模式设置为 %3$s #

But these two translation texts in en_US-pocket.lang is

commands.gamemode.success.other=Set %s's game mode to %s
commands.gamemode.success.self=Set own game mode to %s

There's no any "%2$s" or "%3$s"
So I change my gamemode to in a server, it says "将自己的游戏模式设置为", no gamemode. The same, I change the other's gamemode, it says "将 gamemode 的游戏模式设置为".
Please modify these two translation texts and correct the others.

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In 0.16.1, this bug is still exist, and not only Chinese, English is the same. Maybe the other gamemodes are also the same