The License: tag for marisa is "BSD or LGPL".
This contradicts the Licensing Guidelines, which say that un-versioned GPL/LGPL identifiers should not be used.
I took a look at the marisa tarball; COPYING says "The LGPL 2.1 or any later version", which means the tag should be "BSD or LGPLv2+".
COPYING is not the right place to check: LGPLv2+ is stated in the README file.
In general I mean COPYING is just a copy of the general license file.
But okay, sorry, in this case COPYING does actually look clearer.