Added a bit more clarification (different wording) on why to
use the immediate expansion operator and on why to include
the trailing separating colon character.
(From yocto-docs rev: d5789c98fe570f48de8546d1fc218b4d5c577d0e)
Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
59e4eb05d1