Add test/personality to .gitignore

It was missed in the previous patch.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/.gitignore b/.gitignore
index acbd30b..bdff558 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,6 +55,7 @@
 /test/nop
 /test/open-close
 /test/openat2
+/test/personality
 /test/poll
 /test/poll-cancel
 /test/poll-cancel-ton