implied by other options like --valgrind and
GIT_TEST_INSTALLED.
+--no-bin-wrappers::
+ By default, the test suite uses the wrappers in
+ `../bin-wrappers/` to execute `git` and friends. With this option,
+ `../git` and friends are run directly. This is not recommended
+ in general, as the wrappers contain safeguards to ensure that no
+ files from an installed Git are used, but can speed up test runs
+ especially on platforms where running shell scripts is expensive
+ (most notably, Windows).
+
--root=<directory>::
Create "trash" directories used to store all temporary data during
testing under <directory>, instead of the t/ directory.