Typo in Copyright notice of font files

[SFr682k]

There’s a typo in the font files’ copyright notice (see e.g. SourceSans3-Regular.otf); it currently reads:

© 2010 - 2021 Adobe Systems Incorporated (http://www.adobe.com/), with Reserved Font Name ‘Source†.

To fix this, \2020 (Dagger) would need to be replaced with \2019 (Right Single Quotation Mark) in the following line: https://github.com/adobe-fonts/source-sans/blob/ecf13e573bcce1de7c31d62c022d5830b927e20f/familynameIDs.fea#L4

[frankrolf]

@pauldhunt Unicode-escapes are no longer necessary in feature files, so it can be nameid 0 "© 2010 - 2021 Adobe Systems Incorporated (http://www.adobe.com/), with Reserved Font Name ‘Source’";