Change license string to SPDX compliant version (#4)
Change license string to SPDX compliant version (#4)

Recognized that this package isn't compatible with the "license-checker" (https://www.npmjs.com/package/license-checker) module because of the provided license string. Changed it to the SPDX compliant version, see https://spdx.org/licenses/MPL-2.0.html
seanmonstar/symbol