[trivial PATCH 01/22] [libradius.h] eliminate build warnings

[WANG Tinggong]

Alan DeKok wrote:
>
> Here's my review:
>
> Patches 01, (and related)
>         19, 20
>  - Don't put changes to a function prototype in a *separate* patch
>	     from changes to the source file.  This breaks the build.
>
> Patches 11, 12, 13, 14, 15, 16
>  - OTP code.  I'll let Frank review them.
>
> Patches 05, 06, 07, 08, 10,
>  - adding function prototypes to remove warnings is good.
>    But they belong in a header file, not in a C file.
>
>    Many of the rest are minor, and have no impact other than messages
>when building.  i.e. these are low priority items.
Agree! But i have a question, as a user, what's your opion about a program
producing warning messages?

thanks for your review!
Tinggong