Progress: Continue fixing iki_read (and eki_read).

Progress: Continue fixing iki_read (and eki_read).

There is overlap between how `--at` and `--line` work when not using `--whole`.
Do not treat using both as an error.
Instead, just have `--at` be the higher priority and then perform `--line`.
This results in a `--line` that can only potentially print something if it has a value of 0.

This is only the case for `--object`.
Both the `--content` and the `--literal` may potentially have multiple lines.

I removed the existing `--line` logic.
I will rewrite the logic for determining the number of lines when printing the `--literal` or the `--content`.
There will also need to be another file that haas multiple iki lines.

I was adding the line break behavior to break out of the loop when the line matches.
Much of that, but not all of that, has been removed until I come back to write the new logic.

The runtime tests are not yet updated.