Fix to include user id 0 in users list.

Fix to include user id 0 in users list of user manager service.
This enables to list out the user present in /etc/passwd file
even if it is root user with user id 0.

Unit test:
1. Made sure phosphor-user-manager service loads successfully
2. It listed root user / any user already present in /etc/passwd file.

Change-Id: I060d9581b7f433411e313b745d9d1b32e8680b7d
Signed-off-by: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com>
1 file changed