Accept comments in Argument files

[alensiljak]

Comments are generally useful, including the argument files. These files can serve as batch files, encapsulating various options. I.e. balance sheet for a group of accounts.
This flexibility will lead me to create multiple files with varying options and, hence, it would be useful to have some explanations about what the files are for, comment-out certain lines at times, etc.

It would be good to simply ignore commented lines, using ';' (or other standard comment characters).

[simonmichael]

I agree but I think it's not supported by the cmdargs lib which we use. Perhaps you can open this issue there ?

[simonmichael]

Although comments in argument files break the intuition of "just interpolate all these lines", they would be quite useful, particularly same-line comments as in these mockups at https://www.stevegattuso.me/tech-stack/finances-budgeting.html#args.

If anyone would like to follow up ndmitchell/cmdargs#57 with a PR, it looks easy enough.