https://github.com/spf13/cobra/blob/master/cobra/cmd/license_gpl_2.go appears to have the correct text for GPL-2.0.

However, at https://github.com/spf13/cobra/blob/master/cobra/cmd/license_gpl_2.go#L33 it incorrectly refers to the "GNU Lesser General Public License". The word "Lesser" should probably be deleted.

(It's possible this one was related to #311...)