RFR: 1817: 'WIP merge requests' renamed to 'draft merge requests' in GitLab

[Zhao Song]

On Mon, 13 Feb 2023 22:56:46 GMT, Zhao Song <zsong at openjdk.org> wrote:

> Since 'WIP' is deprecated in GitLab, we need to update methods related with 'WIP'.

forge/src/main/java/org/openjdk/skara/forge/gitlab/GitLabRepository.java line 117:

> 115:                         .body("source_branch", sourceRef)
> 116:                         .body("target_branch", targetRef)
> 117:                         .body("title", (draft ? "Draft: " : "") + title)

During my test, I was surprised that when `draft` is true, the title will be "Draft: " without the real title. Seems like priority of operators is a little weird. `+` is greater than `?:`.

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PR: https://git.openjdk.org/skara/pull/1472