If local.conf contains an invalid line, e.g.:
APPEND += " igor"
(note the leading space) then nasty tracebacks are shown which confuse the
user. Change so the parse error is simply shown without a traceback, improving
the user experience.
[YOCTO #9332]
(Bitbake rev: 148aa1fb45dcb37a756a08301a7daf270e753180)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>