[LTP] [PATCH v1] Remove obsolete LTPROOT usage in math runtest file

[Petr Vorel]

Hi Andrea,

thanks, merged!

> -float_bessel cd $LTPROOT/testcases/bin; float_bessel -v
> -float_exp_log cd $LTPROOT/testcases/bin; float_exp_log -v
> -float_iperb cd $LTPROOT/testcases/bin; float_iperb -v
> -float_power cd $LTPROOT/testcases/bin; float_power -v
> -float_trigo cd $LTPROOT/testcases/bin; float_trigo -v
> +float_bessel float_bessel -v
> +float_exp_log float_exp_log -v
> +float_iperb float_iperb -v
> +float_power float_power -v
> +float_trigo float_trigo -v

FYI I was thinking about removing -v, but in the end I kept it as the tests
needs to be migrated to new API anyway.

Kind regards,
Petr