* Write explicit -help output to stdout
Per the consensus of most programs, and mirroring the GNU Coding
Standards for CLI design, when users request -help explicitly via the
CLI, this should be written to stdout to allow paging of output. stderr
is fine when an invalid usage triggers the help text however.
In our case, mitchellh/cli helpfully adds a HelpWriter that we
previously set to stderr explicitly. This writer is only called to print
user-requested help text; it is not called on error cases (e.g., bad
usage triggering additional help text to the user).
Thus it should safely be settable to stdout, enabling pagers without
additional redirects.
Notably, we do have to set ErrorWriter as it defaults to initializing to
the value of HelpWriter, which we want to set to stdout now, which is
less useful.
See also: https://www.gnu.org/prep/standards/html_node/_002d_002dhelp.htmlResolves: #17004
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Add changelog
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
