Generate block comments instead of line comments.
Generate block comments instead of line comments.

It would be nice to parse the comments from the lcm defs so we can
output nicely formatted line comments, but this is an easy fix for now.

adeschamps/lcm,adeschamps/lcm,adeschamps/lcm,adeschamps/lcm,adeschamps/lcm,adeschamps/lcm,adeschamps/lcm,adeschamps/lcm