Fixes#13733.
Unlike written in the ticket, the string length is 136 (not 135),
and the code checks for rejects anything greater or equal to the max
value. So set the constant to 137.
* When creating the port of the registrar's authentication manager, we
now set it manually, so that the user/group functions work.
* This allows LaunchDaemon::_StartSession() to set up the user, and
groups as needed.
<libroot_private.h> to <user_group.h>.
* Added support in the registrar for adding and modifying users.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25040 a95241bf-73f2-0310-859d-f6bbb57e9c96
registrar provides access to the DBs via a port message based
protocol. The functions in libroot just ask the registrar now.
* Added Linuxish shadow passwd support. No putspent() though -- we'll
provide private functions.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25002 a95241bf-73f2-0310-859d-f6bbb57e9c96
