Fix a few doxygen specials for the wrappers

The 'brief' special was only being handled at the beginning of a line, and the 'warning' and 'sa' specials were not handled at all. The wrappers already understand a large number of doxygen specials, but not all of them.

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@demarle This is a small change to the wrappers to make them produce nice docstrings from the doxygen comments.

+2

Thx.

Do: merge

mentioned in commit 71c23b61

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Status changed to merged