Require generated parser *after* the Owners module is defined
Require generated parser *after* the Owners module is defined

Otherwise requiring the gem results in the following error:

$ ruby -Ilib -rowners -e'p 1'
OWNERS/lib/owners/lexer.rb:8:in `<top (required)>': uninitialized constant Owners (NameError)

I am not sure why the build did not catch this; I found out updating one
of our application to the use the upstream version instead of our
internal fork.

bkeepers/OWNERS