Display title if exists if a required argument is missing

[l-vo]

In the help screen, the title can be displayed instead of "arg 0". Add the same behavior on the error message when a required argument is missing.

[NeoVance]

@l-vo Please merge latest dev, and rerun checks.

[l-vo]

@NeoVance Done :)

[tolidano]

I tried to do a similar thing because I didn't read carefully enough the list of open PRs: #98

[l-vo]

@tolidano Sadly I'm not sure that the project is still maintained anyway. There are some alternatives like Symfony console or Laravel zero (although they are a bit heavier). @nategood could you confirm the state of the project please ?

[tolidano]

if @nategood wants to abandon, I offer to take it over, I think it's far and away more useful than pulling in Symfony or Laravel components.
Feel free to publish a new version to packagist to redirect to tolidano/commando, and I'll set up the rest. I'll even go through all the open PRs and the issues. I'll publish a final version then upgrade the whole thing to PHP 7.2 and publish a 7.2+ version.

[tolidano]

I went ahead and forked and rewrote this for PHP 7.2 - https://packagist.org/packages/tolidano/commandox

[tolidano]

I created a PHP 5.4-7.1 version of this and then a PHP 7.2 version: https://github.com/tolidano/commandox/releases