Automated change: Fix sanity tests

tools/run_tests/sanity/check_do_not_submit.sh

diff --git a/tools/run_tests/sanity/check_do_not_submit.sh b/tools/run_tests/sanity/check_do_not_submit.sh
index bd1141d..6e0438c 100644
--- a/tools/run_tests/sanity/check_do_not_submit.sh
+++ b/tools/run_tests/sanity/check_do_not_submit.sh
@@ -20,4 +20,4 @@
   './*' \
   ':!*check_do_not_submit.sh' \
   ':!third_party/'
-test $? -eq 1 || exit 1
\ No newline at end of file
+test $? -eq 1 || exit 1