License: GPL-2+ or GPL-3+

[Andrej Shadura]

Hi,

License statements in files state the license of the CLI tool is GPL-2+, but README.md says GPL-3+. Could you please clarify that?

Thanks!

[Hiroshi Miura]

I cannot remember why I wrote it, but 368e742 does not say anything about reason about license.

It would be wrongly documented in README. (or I might wanted to change it).

OK, Id like to set GPL2+ here.