add defer res.Close() documentation

[bryfry]

No description provided.

[lithammer]

I believe defer calls are usually after the error handling (if err != nil), because if an error occurred, res might be nil.

 res, err := r.Db("database").Table("tablename").Get(key).Run(session)
-defer res.Close()
 if err != nil {
     // error
 }
+defer res.Close()

[dancannon]

Thanks I think defering the close is definitely the correct approach when dealing with cursors.

Because @Renstrom is correct about putting the defer after the error check I have updated the documentation in 5a15a4e. I'll close this issue.