Reported by @kallewoof here: https://github.com/bitcoin/bitcoin/pull/13917#issuecomment-412459298

```
$ ./bitcoin-cli createpsbt "[]" "[{\"$(./bitcoin-cli getnewaddress)\":0.01}]"
cHNidP8BACoCAAAAAAFAQg8AAAAAABepFG6Rty1Vk+fUOR4v9E6R6YXDFkHwhwAAAAAAAA==
$ ./bitcoin-cli decodepsbt cHNidP8BACoCAAAAAAFAQg8AAAAAABepFG6Rty1Vk+fUOR4v9E6R6YXDFkHwhwAAAAAAAA==
error code: -22
error message:
TX decode failed CDataStream::read(): end of data: unspecified iostream_category error
```

{
        fclose();
    }
    
    CAutoFile(const CAutoFile&) = delete;
    CAutoFile& operator=(const CAutoFile&) = delete;
    void fclose()
    {
        if (file) {
            ::fclose(file);
            file = nullptr;
        }
    }
    /** Get wrapped FILE* with transfer of ownership.
     * @note This will invalidate the CAutoFile object, and makes it the responsibility of the caller
     * of this function to clean up the returned FILE*.
     */
    FILE* release()             { FILE* ret = file; file = nullptr; return ret; }
    /** Get wrapped FILE* without transfer of ownership.
     * @note Ownership of the FILE* will remain with this class. Use this only if the scope of the
     * CAutoFile outlives use of the passed pointer.
     */
    FILE* Get() const           { return file; }
    /** Return true if the wrapped FILE* is nullptr, false otherwise.
     */
    bool IsNull() const         { return (file == nullptr); }
    
    
    
    int GetType() const          { return nType; }