fix the fts cut

This commit fixes the FTS cut so that it returns 1 when the event is flagged as
failing the cut. Previously, the function returned the following:

not enough PMT pairs: 0 (fail)
median time > 6.8 ns: 0 (fail)
otherwise:            1 (pass)

This had two issues: the return value wasn't consistent with the rest of the
data cleaning cuts and it should pass if there aren't enough PMT pairs.

Now, I fixed the not enough PMT pairs case and made the return value consistent
with the rest of the data cleaning cuts:

not enough PMT pairs: 0 (pass)
median time > 6.8 ns: 1 (fail)
otherwise:            0 (pass)

0 files changed, 0 insertions, 0 deletions