Useradd attempts to add users/groups even when
{USERADD,GROUPADD,GROUPMEMS}_PARAM is whitespace only. This scenario is
possible when variables and modified using one of +=, =+ operator, yet
the content being added is conditional (i.e. may depend on PACKAGECONFIG
flags).
(From OE-Core rev: 466288d528cce5f9887d765a757af64c9cc6be03)
Signed-off-by: Maciej Borzecki <maciej.borzecki@open-rnd.pl>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>