We decided to leave trailing `*` meaning the same as `**` because it was
already in use.

Original description:

This patch demonstrates a corner case in the path glob matcher.
Specifically, it documents how a single trailing asterisk is supposed
to be treated as opposed to a double asterisk.
With [[1]], a trailing `/*` is interpreted as an equivalent of `/**`.
The commit add a case that shows that `/*` shouldn't be greedy as
described in the docs [[2]][[3]].

See also the observations in the bug report ticket [[4]].

[1]: ec6205a
[2]: https://coverage.rtfd.io/en/stable/source.html#file-patterns
[3]: https://coverage.rtfd.io/en/7.2.7/migrating.html#migrating-to-coverage-py-7-x
[4]: #1407 (comment)