Spotlight: "spotlight expr = false" broke the default Spotlight query

The default Spotlight query a Mac uses is

  *=="test*"cwd || kMDItemTextContent=="test*"cwd

which is of course using a logic expression. The parser has an extra
rule for catching this (MATCH or MATCH) for the purpose of munging
both expression into a single fts:match SPARQL query. Which means
we shouldn't check whether logic expressions are enabled or not.

Signed-off-by: Ralph Boehme <rb@sernet.de>