[PATCH] chg: silence warning of unused parameter 'sig'

[Yuya Nishihara]

On Tue, 28 Jun 2016 21:21:50 +0100, Jun Wu wrote:
> Alternative to the GNU extension "__attribute__", there are 2 common
> patterns to silence the warning:
> 
>   void handlechildsignal(int /* sig */)

It's C++.

> or in the body of the function:
>   
>   (void)sig;

Yes, I sometimes do that if I want to suppress the warning conditionally.