juju debug-log help needs to be updated

[Andrew Woodward]

Juju 2.2.2

The examples section contains

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Examples:

Exclude all machine 0 messages; show a maximum of 100 lines; and continue to
append filtered messages:

    juju debug-log --exclude machine-0 --lines 100

Include only unit mysql/0 messages; show a maximum of 50 lines; and then
exit:

    juju debug-log -T --include unit-mysql-0 --lines 50

Show all messages from unit apache2/3 or machine 1 and then exit:

    juju debug-log -T --replay --include unit-apache2-3 --include machine-1

Show all juju.worker.uniter logging module messages that are also unit
wordpress/0 messages, and then show any new log messages which match the
filter:

    juju debug-log --replay
        --include-module juju.worker.uniter \
        --include unit-wordpress-0

Show all messages from the juju.worker.uniter module, except those sent from
machine-3 or machine-4, and then stop:

    juju debug-log --replay --no-tail
        --include-module juju.worker.uniter \
        --exclude machine-3 \
        --exclude machine-4

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However the -T flag isn't supported any longer. It appears that it's supposed to imply --no-tail

additionally, the current version supports the same unit syntax as the rest of the juju unit commands so `unit-worpress-0` can also be expressed as `worpress/0`

[Jon Seager (jnsgruk)]

https://github.com/juju/juju/pull/14054

[Jon Seager (jnsgruk)]

I couldn't find reference to `-T`, but I've updated the unit notation in the PR above.