abi: implement Debug for Entry struct

Signed-off-by: Carlos López <[email protected]>

Author: 00xc

src/api/filesystem/mod.rs

@@ -31,7 +31,7 @@ mod sync_io;
 pub use sync_io::FileSystem;
 
 /// Information about a path in the filesystem.
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Debug)]
 pub struct Entry {
     /// An `Inode` that uniquely identifies this path. During `lookup`, setting this to `0` means a
     /// negative entry. Returning `ENOENT` also means a negative entry but setting this to `0`