This touches all new tests added since commit b062bbd9, when
init.cfg was added. Older tests still exist that could use
conversion, but we can address those later.
* tests/sample-test: Restore hint for --version output.
* tests/misc/stat-birthtime: Include --version if verbose.
* tests/misc/tr-case-class: Likewise.
* tests/misc/stat-mount: Likewise.
* tests/misc/sort-unique: Likewise.
* tests/misc/sort-benchmark-random: Likewise.
Suggested by Jim Meyering.
d4f304d721