[Nut-upsdev] Replace target.line and target.battery?

[Niklas Edmundsson]

Hi all!

I propose to replace the variables output.voltage.target.line and 
output.voltage.target.battery with the variable 
output.voltage.nominal.

The reasons for doing it:
* Unify naming, the term "nominal" is used both in NUT and by UPS
   makers for this.
* Very few devices (none that I have seen) have a nominal output
   voltage that differs when on battery/mains.
* A single variable makes life easier when figuring out the nominal
   voltage in upsimage and friends.

The only reason I can find for not doing it is the fact that it might 
break out-of-tree applications, but that's to be expected between 
major versions anyway.

/Nikke
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  Niklas Edmundsson, Admin @ {acc,hpc2n}.umu.se      |     nikke at acc.umu.se
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