Build: omit @install alias from jbuilder commands
Build: omit @install alias from jbuilder commands

...when it is the default, because no other targets are given.

c-cube/lwt,rneswold/lwt,c-cube/lwt,c-cube/lwt,rneswold/lwt,rneswold/lwt,ocsigen/lwt,ocsigen/lwt,ocsigen/lwt