+(* Generate a uuidgen-compatible UUID (used in tests). However to
+ * avoid having the UUID change every time we rebuild the tests,
+ * generate it as a function of the contents of the
+ * generator_actions.ml file.
+ *
+ * Originally I thought uuidgen was using RFC 4122, but it doesn't
+ * appear to.
+ *
+ * Note that the format must be 01234567-0123-0123-0123-0123456789ab
+ *)