omitempty breaks Decode

[chowey]

With #81, toml supports the omitempty tag while encoding a struct. For example:

type S struct {
    V string `toml:"value,omitempty"`
}

will skip writing "V" during toml.Encode().

Unfortunately the reverse is not true. omitempty has no meaning for toml.Decode() and is treated as part of the field name. In the example above, toml.Decode() will attempt to decode the field named value,omitempty into "V" and will ignore the field named value.

[cespare]

Fixed by #82.