[shepherd] branch wip-logging created (now 0be5cf8)

[Ludovic Courtès]

civodul pushed a change to branch wip-logging
in repository shepherd.

      at 0be5cf8  service: Associate loggers with services; keep buffer of 
logged lines.

This branch includes the following new commits:

     new 3302861  service: Move line-by-line log reading to a separate fiber.
     new 088997a  service: Thread the current service to actions.
     new cc8ea8a  service: Built-in logger logs the PID of the service.
     new 0be5cf8  service: Associate loggers with services; keep buffer of 
logged lines.

The 4 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.