io_jail: fix missing null terminator for close_fds test

BUG=None
TEST=cargo test -p io_jail

Change-Id: Ib732daca97cb303ec5013e616e6a7037b11af589
Reviewed-on: https://chromium-review.googlesource.com/1056414
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/io_jail/src/lib.rs b/io_jail/src/lib.rs
index ec38d2c..b6f0aea 100644
--- a/io_jail/src/lib.rs
+++ b/io_jail/src/lib.rs
@@ -602,7 +602,7 @@ mod tests {
     // Test that open FDs get closed and that FDs in the inherit list are left open.
     fn close_fds() {
         unsafe { // Using libc to open/close FDs for testing.
-            const FILE_PATH: &'static str = "/dev/null";
+            const FILE_PATH: &[u8] = b"/dev/null\0";
             let j = Minijail::new().unwrap();
             let first = libc::open(FILE_PATH.as_ptr() as *const i8, libc::O_RDONLY);
             assert!(first >= 0);