If we split variables only at whitespaces, a slipped in tab will render
a value unremovable.
(Bitbake rev: 9f171ea755644ecd9d2b3d7ed13bf8ec09ec917a)
Signed-off-by: Stefan Müller-Klieser <s.mueller-klieser@phytec.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>