Changes the idiom used for constant mask generation to a ternary.
This pattern is definitely used elsewhere in code but we can get rid of
all instances here.
It is not an external component, and it makes paths needlessly long.
Ryan seemed amenable to this when we discussed on IRC earlier.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Ryan Houdek