We have a bunch of -help targets so this will save some cognitive
dissonance. Keep the original for those with muscle memory.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210202134001.25738-6-alex.bennee@linaro.org>