message: Fix link_exists() test (different on pre-1.10)
diff: @@ -306,10 +306,13 @@ pub mod tests {
  assert!(!file.link_exists("b"));
  assert!(!file.link_exists("soft"));
  let group = file.group("a/soft").unwrap();
  - assert!(group.link_exists("/"));
  assert!(group.link_exists("c"));
  assert!(!group.link_exists("a"));
  assert!(!group.link_exists("soft"));
  + #[cfg(not(hdf5_1_10_0))]
  + assert!(!group.link_exists("/"));
  + #[cfg(hdf5_1_10_0)]
  + assert!(group.link_exists("/"));
  })
  }
  