Re: warnings in mi-json.c

[Jose E. Marchesi]

> When compiling mi-json.c with CPPFLAGS=-Wall, I see a couple of warnings:
>
> ../../../testsuite/poke.mi-json/mi-json.c: In function ‘test_json_pk_sct’:
> ../../../testsuite/poke.mi-json/mi-json.c:250:7: warning: unused variable 
> ‘signed_p’ [-Wunused-variable]
>    int signed_p;
>        ^
> ../../../testsuite/poke.mi-json/mi-json.c: In function ‘test_json_file’:
> ../../../testsuite/poke.mi-json/mi-json.c:560:10: warning: unused variable 
> ‘len’ [-Wunused-variable]
>    size_t len = 0;
>           ^
> ../../../testsuite/poke.mi-json/mi-json.c:559:11: warning: unused variable 
> ‘nread’ [-Wunused-variable]
>    ssize_t nread;
>            ^
> ../../../testsuite/poke.mi-json/mi-json.c:557:24: warning: unused variable 
> ‘line’ [-Wunused-variable]
>    char *poke_datadir, *line = NULL;
>                         ^
> ../../../testsuite/poke.mi-json/mi-json.c:557:9: warning: unused variable 
> ‘poke_datadir’ [-Wunused-variable]
>    char *poke_datadir, *line = NULL;
>          ^
>
> These are harmless. But it would be nice to clean them up nevertheless.

I think that Mohammad took care of this.