Fix "-n" option in Minijail.

BUG=None
TEST="minijail -n" does not call prctl() after setting seccomp mode 2.

Change-Id: I0147457d31019d1a70e37cf712141979f4262461
Reviewed-on: https://gerrit.chromium.org/gerrit/27554
Tested-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Reviewed-by: Will Drewry <wad@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Commit-Ready: Jorge Lucangeli Obes <jorgelo@chromium.org>
diff --git a/minijail0.c b/minijail0.c
index be13338..997b9d9 100644
--- a/minijail0.c
+++ b/minijail0.c
@@ -115,6 +115,7 @@
 			break;
 		case 'n':
 			minijail_no_new_privs(j);
+			break;
 		case 's':
 			minijail_use_seccomp(j);
 			break;