Replace `_` by `-` in meson options

[fvalette-ledger]

By convention, GNU long option use hyphens to separate words.

GNU adds long options to these conventions. Long options consist of -- followed by a name made of alphanumeric characters and dashes. Option names are typically one to three words long, with hyphens to separate words. Users can abbreviate the option names as long as the abbreviations are unique.

So, rename meson option in order to use hyphen instead of underscore