This PR was squashed before being merged into the 2.7 branch (closes #13220). Discussion ---------- [Console] Made output docopt compatible | Q | A | ------------- | --- | Bug fix? | no | New feature? | yes | BC breaks? | no | Deprecations? | no | Tests pass? | yes | Fixed tickets | #6329 | License | MIT | Doc PR | symfony/symfony-docs#5016 This was harder than I thought. To sum up: * The output now follows the [docopt](http://docopt.org/) specification * There is a new `addUsage` method to add more usage patterns * The handling of spaces in the descriptors is refactored to make it easier to understand and to make it render better (using sprintf's features only made it worse imo) Todo --- * [x] Add test for `addUsage` and friends * [x] Add test for multiline descriptions of arguments * <s>Convert long descriptions to multiline automatically</s> * [ ] Submit a doc PR for `addUsage` Question --- The docopt specification suggests we should add these usage patterns: %command.name% -h | --help %command.name% --version I didn't do that yet, as I think it'll only makes the output more verbose and it's already pretty obvious. I've taken some decisions which I don't think everybody agrees with. I'm willing to change it, so feel free to comment :) /cc @Seldaek Commits ------- 3910940 [Console] Made output docopt compatible

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