This method looked slightly incomplete. If the port wasn't found,
it'd return `err`, but that was always `nil`, so we'd print out
`:0`.
Now, we construct a nice error message with the targeted port and
the ones we found.
The `--protocol` flag is also now case-insensitive to prevent any
weirdness/confusion there.
Co-authored-by: Nick Sieger <nicksieger@gmail.com>
Signed-off-by: Milas Bowman <milas.bowman@docker.com>
Integrates PR #9462 with additional fixes/changes.
Additional changes will be required to utilize this.
Co-authored-by: Nicolas De Loof <nicolas.deloof@gmail.com>
Signed-off-by: Ulysses Souza <ulyssessouza@gmail.com>
This updates the format of various usage strings to be more consistent
with other parts of the CLI.
- Use `[OPTIONS]` to indicate where command-specific options should be added
- Use `[SERVICE...]` to indicate zero-or-more services
- Remove some usage strings for specific options (e.g. `-e NAME=VAL`), as that
option is part of the already mentioned `[OPTIONS]` and we don't provide usage
for each possible option that can be passed.
- Remove `[--]`, which (I think) was needed for the Python implementation, but is
a general feature to stop processing flag-options.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>