Fixed name inconsistency with "client" & "player"

Next time, make a better effort when plagiarizing code. Thanks.

https://github.com/CloudSixteen/Clockwork/blob/2e62747f8ecfdf35a091a37e0997d01e16eb7a9a/Clockwork/garrysmod/gamemodes/clockwork/framework/cl_kernel.lua#L1028

https://github.com/Chessnut/NutScript/blob/1.1/gamemode/core/hooks/cl_hooks.lua#L71