Ed Santiago 8f82edbcb3 Usage messages: deduplicate '(default true)' et al ...

Remove hardcoded '(default: true)' strings from bool flags,
and '(default this-or-that)' from string flags.

First because it's unmaintainable duplication that would cause
confusion should someone ever change the default and not notice
the message.

Second, because cobra[1] already prints '(default XXXX)' for
all options with non-false non-nil default. So in each of
these cases, current podman help behavior is:

    $ podman login --help
    ...
       --tls-verify  Require HTTPS ... (default: true) (default true)

This PR eliminates that duplication.

 [1] actually spf13/pflag/flag.go

The only nontrivial one of these is start.go, where the default
for sigProxy depends on the --attach flag. Solution: change
the command-line default to false, and implement the new
conditional default in logic. Bonus: removed unnecessary
check, because now if sigProxy is set without --attach,
we can guarantee that it was done by the user. But please
pay close scrutiny to this particular section in case
there's something I missed.

Signed-off-by: Ed Santiago <santiago@redhat.com>

2019-03-13 16:34:31 -06:00

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