| Age | Commit message (Collapse) | Author | 
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|  | If we don't allow the higher-tier on the left side, we cannot chain
multiple or/and on the same level. Since or is associative, we shouldn't
expect the user to write (... or (... or ...)) and instead provide the
flattened version as well. | 
|  | Otherwise they'd get tokenized as word and we couldn't build
conjunctions/disjunctions. | 
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|  | This method is not perfect yet, because
1. The items are not documented as they were before
2. You need to separate the args with --, otherwise Clap tries to parse
   them as optional flags
This should be fixed (especially the documentation part) before merging
into master. | 
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