+--with-dashes::
+ By default tests are run without dashed forms of
+ commands (like git-commit) in the PATH (it only uses
+ wrappers from ../bin-wrappers). Use this option to include
+ the build directory (..) in the PATH, which contains all
+ the dashed forms of commands. This option is currently
+ implied by other options like --valgrind and
+ GIT_TEST_INSTALLED.
+
+--root=<directory>::
+ Create "trash" directories used to store all temporary data during
+ testing under <directory>, instead of the t/ directory.
+ Using this option with a RAM-based filesystem (such as tmpfs)
+ can massively speed up the test suite.
+