Small bugs related to translation

[Dirk Hohndel]

Sergey Starosek <sergey.starosek at gmail.com> writes:

> Hi,
>
> Spotted some minor bugs while updating Russian translation:
>
> 1) "Gas Used" string  has different meaning in planner.c:1144 than in
> other places. Everywhere it means volume of a gas consumed but in
> planner it's name of the gas mix.

And this one should be fixed as well. This causes a tiny update to the
.po files :-(

/D