Add verify trim support

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
diff --git a/init.c b/init.c
index f0ee37a..fe4dbf2 100644
--- a/init.c
+++ b/init.c
@@ -447,6 +447,7 @@
 		os_random_seed(td->rand_seeds[3], &td->next_file_state);
 
 	os_random_seed(td->rand_seeds[5], &td->file_size_state);
+	os_random_seed(td->rand_seeds[6], &td->trim_state);
 
 	if (!td_random(td))
 		return;