On a trace I was a bit puzzled why getVar was making 180 calls to len(d).
This is an expensive operation that should be very rarely called and
certainly not by getVar. In perl's do_package it was resulting in
~1.5 million function calls from those 180 cases.
Ultimately this typo was why. Lets fix it and save the CPU cyles.
(From OE-Core rev: a8ba821d0002e4395fc5c80649fe14f93a7971fe)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>