What version of git-annex are you using? On what operating system?

6.20170101+gitg93d69b1-1~ndall+1

Please provide any additional information below.

$> git annex copy --help
...
  -j,--json                enable JSON output
  -j,--json-progress       include progress in JSON output

Removed the short -j for --json-progress, I don't think that needs a short option. done --Joey