OPL-2.1 text is OSET Public License version 2.0 (not 2.1)

[goneall]

See

licenses/texts/plain/OPL-2.1

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VERSION 2.0THIS LICENSE DEFINES THE RIGHTS OF USE, REPRODUCTION, DISTRIBUTION, MODIFICATION, AND REDISTRIBUTION OF CERTAIN COVERED SOFTWARE (AS DEFINED BELOW) RELEASED BY THE OPEN SOURCE ELECTIONS TECHNOLOGY FOUNDATION ("FORMERLY THE OSDV FOUNDATION"). ANYONE WHO USES, REPRODUCES, DISTRIBUTES, MODIFIES, OR REDISTRIBUTES THE COVERED SOFTWARE, OR ANY PART THEREOF, IS BY THAT ACTION, ACCEPTING IN FULL THE TERMS CONTAINED IN THIS AGREEMENT. IF YOU DO NOT AGREE TO SUCH TERMS, YOU ARE NOT PERMITTED TO USE THE COVERED SOFTWARE.This license was prepared based on the Mozilla Public License (“MPL”), version 2.0. For annotation of the differences between this license and MPL 2.0, please see the OSET Foundation web site at http://www.OSETFoundation.org/public-license1. Definitions 1.1. “Contributor” means each individual or legal entity that creates, contributes to the creation of, or owns Covered Software.1.2. “Contributor Version” means the combination of the Contributions of others (if any) used by a Contributor and that particular Contributor’s Contribution.1.3. “Contribution” means Covered Software of a particular Contributor.1.4. “Covered Software” means Source Code Form to which the initial Contributor has attached the notice in Exhibit A, the Executable Form of such Source Code Form, and Modifications of such Source Code Form, in each case including portions thereof.1.5. “Incompatible With Secondary Licenses” means a. That the initial Contributor has attached the notice described in Exhibit B to the Covered Software; or

This line appears to be from version 2.0 of the license - not version 2.1

Note that the website text appears to be the correct version.