fix todo

src/zfs.rs

@@ -91,17 +91,13 @@ impl ZPool {
     }
 
     pub fn export(self) -> Result<()> {
-        todo!()
+        zpool_export(&self.name)
     }
 
     pub fn scrub(&self) -> Result<()> {
         zpool_scrub(&self.name)
     }
 
-    pub fn status(&self) -> Result<String> {
-        todo!()
-    }
-
     pub fn import(name: &str) -> Result<ZPool> {
         zpool_import(name)?;
         let result = ZPool::new(name)?;