🐛 [User-reported Bug] --participant_label skips first and last subject

[XinhuiLi]

Describe the bug

1. When using the docker run argument --participant_label and multiple participants are specified, it will skip the first and the last participant. For example, --participant_label [A B C] will only run subject B.
2. It currently only takes subject IDs separated by space. If we separate IDs by comma, it will crash.

To Reproduce
Steps to reproduce the behavior:

1. Add --participant_label [A B C] in docker run command
2. Run and check output directory

Expected behavior

1. It should run all subjects specified in --participant_label
2. It's better to allow the usage of comma or colon to separate subject IDs, and offer an example in user doc.

Screenshots

Versions

• C-PAC: 1.5 - 1.8.0
• Container Platform :
  • Docker or Singularity 1.8.0

Additional context