docker: pass some extra flags to go
docker: pass some extra flags to go

It's not needed to have debug symbols and all that in the final binary (panics
will be readable anyways).

Signed-off-by: Miquel Sabaté Solà <b4d70704b9e7df580cab34510621dbd0aacb2dfd@suse.com>

mssola/todo,mssola/todo,mssola/todo,mssola/todo