templater: add pad_center template function #5542
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Add a new pad_center function that centers content within a minimum width. If an odd number of fill characters is required, the trailing fill will be one character longer than the leading fill. Fixes jj-vcs#5066.
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I started out trying to implement a
pad_betweenfunction as suggested on the feature request, but got bogged down because all of the template wrapping expects a single content argument. If you think it's still worth pursuing that approach, I can spend Monday working on it, but I thought it might be more useful to get a simpler fix out faster.Fixes #5066.
Checklist
If applicable:
CHANGELOG.md