crowsnest doesn't accpect number with a decimal place

[broncosis]

crowsnest doesn't like number with a decimal place for the frame rate

max_fps: 30.000 # If Hardware Supports this it will be forced, otherwise ignored/coerced.

VS

max_fps: 30 # If Hardware Supports this it will be forced, otherwise ignored/coerced.
the second one works why the top one doesn't