Pull Requests Guidelines

See CONTRIBUTING.md for more details about when to create
a GitHub Pull Request and when other kinds of contributions or
consultation might be more desirable.

When creating a new pull request, please fork the repo and work within a
development branch.

Commit Messages

In the notAnOptionalFieldSelectionCall method, the call to fmt.Sprintf
had a format string with three placeholders (%s, %d, %s) but only two
arguments were provided. This would cause the last %s to be rendered
as "%!s(MISSING)" at runtime.

This commit removes the redundant trailing %s placeholder from the
format string to ensure the number of arguments matches the placeholders,
thus fixing the error.

Reviews

• Perform a self-review.
• Make sure the Travis CI build passes.
• Assign a reviewer once both the above have been completed.

Merging

• If a CEL maintaner approves the change, it may be merged by the author if
  they have write access. Otherwise, the change will be merged by a maintainer.
• Multiple commits should be squashed before merging.
• Please append the line closes #<issue-num>: description in the merge message,
  if applicable.