Update to use docopt.go import which should be ok since Go 1.13

[wallyqs]

Updated the repository to use github.com/docopt/docopt.go which since version Go 1.13 should work ok with Go modules (I know because other project I help maintain nats.go was one of the first projects ending with .go being able to use this approach without issues 😅 )

Signed-off-by: Waldemar Quevedo wally@synadia.com

[coveralls]

Coverage remained the same at 88.261% when pulling 8d0f41e on wallyqs:updates2020 into ee0de3b on docopt:master.

[c4milo]

@mboersma ping

[wallyqs]

Closing since seems that project is not maintained anymore, but this should be fine in case someone wants to pick this up.

[mboersma]

@wallyqs my apologies for not following up! You're right that the project is unmaintained now, and I'm reluctant to make any changes that would imply it's still supported.

I still think docopt is a groovy idea, but the project founder has moved on and none of us have been able to contact him for years. 😞

[wallyqs]

@mboersma no worries! I liked docopt since it was great for prototyping when using it in Ruby, thanks for the reply :)

[shakefu]

Would be great to add 1.16 and 1.17 to CI with this PR as well @wallyqs

[shakefu]

@oprypin This looks safe to merge targeting a 1.x release and deprecating pre-module Go along with #80.

[wallyqs]

@shakefu thanks, just added 👍