Fix dir test on non-illumos

Author: jasonbking

test/test_dir.rs

@@ -7,11 +7,11 @@ use tempfile::tempdir;
 
 #[cfg(test)]
 fn flags() -> OFlag {
+    #[cfg(target_os = "illumos")]
     let f = OFlag::O_RDONLY | OFlag::O_CLOEXEC;
 
-    #[cfg(not(target_os = "illumos"))] {
-        f |= OFlag::O_DIRECTORY;
-    }
+    #[cfg(not(target_os = "illumos"))]
+    let f = OFlag::O_RDONLY | OFlag::O_CLOEXEC | OFlag::O_DIRECTORY;
 
     f
 }