najoshi/sickle — pull request #35 by tsibley (2014-08-15 19:03:04+00:00)
Title: Add a --drop-n / -N option to drop any sequence containing an N

This is a stricter version of --truncate-n which may use sequence
fragments up until the first N provided they pass the length filter.

**Note:** this depends on my previous branch (PR #34) and so contains those commits as well. Only the tip commit is the feature-adding one.