dana fca9709d94 complete: improve zsh completion ...

- Use groups with _arguments
- Conditionally complete 'negation' options (--messages, --no-column, &c.)
- Improve option exclusivity
- Improve option descriptions
- Improve completion of colour 'whens'
- Improve completion of colour specs
- Remove some unnecessary work-arounds
- Use more idiomatic conventions

2018-07-06 10:23:20 -04:00

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_rg

complete: improve zsh completion

2018-07-06 10:23:20 -04:00