Round up monitoring numbers in UI

[silv7k]

I don’t think anyone needs to know their fan rotation speed with decimal precision (honestly, I would round up mine to hundreds), so an option to set format specifier for every source would be nice.
If that seems too complicated and unnecessary, can you please always display %.1f at least? Very hard to look at the data with jumping back and forth strings (16.0 is displayed “16”, while 16.1 is displayed “16.1”).