`report` command: Rename `--format` flag to `--output`

[dominikbraun]

The timetrace report command has a flag called --format for specifying the output format, e. g. JSON.

However, since #114, the timetrace status command has a --format flag for specifying a custom output format and uses a flag called --output for specifying JSON as output format.

How it is

Command	Flag	Description
status	--output	Output format, e.g. JSON
status	--format	Custom format
report	--format	Output format, e.g. JSON

This should be changed: The --format flag of report should be renamed to --output so that it serves the same purpose as the status --output flag.

How it should be

Command	Flag	Description
status	--output	Output format, e.g. JSON
status	--format	Custom format
report	--output	Output format, e.g. JSON

Don't forget to update the documentation accordingly! 😄

[dominikbraun]

@KonstantinGasser Sorry for not making this clear when you worked on the report feature, but we had to find a name for the status --output flag first.

[KonstantinGasser]

Oh I see - yes makes senes to keep the logic the same way. Sure, I will change that and create a PR 😄. That also means that the report command does not need a --format flag. The --out flag for the output file name however can stay the same?

[dominikbraun]

The --out flag for the output file name however can stay the same?

I'm afraid that an --output flag with a coexisting --out flag will be a bit confusing, but I don't know a better name 🤔

[KonstantinGasser]

how about a --file flag to specify the output file?

[KonstantinGasser]

@dominikbraun I opened a PR with the aligned naming convention.

[dominikbraun]

how about a --file flag to specify the output file?

I also thought about --file or --path. Feel free to pick the one you prefer if you want to :-)

[dominikbraun]

Closed by #138.