- Name the screen session 'devshell', to avoid confusion if running bitbake
itself under a screen session.
- Display a warning message when spawning screen, so it's clear to the user
that screen has been run (otherwise do_devshell just appears to hang).
(From OE-Core rev: 13e01d29d14e7e7403d0c45c5699ea9160243868)
Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>