 - Revamp the function _nis_initshells() to make getusershell() backed    by NIS work, like nsswitch.conf(5) promises to be able to.    (These modifications will be fed back to NetBSD, of course)  - In endusershell(), do not set `sl' to NULL if we know it already has    that value.
 - Revamp the function _nis_initshells() to make getusershell() backed
   by NIS work, like nsswitch.conf(5) promises to be able to.
   (These modifications will be fed back to NetBSD, of course)
 - In endusershell(), do not set `sl' to NULL if we know it already has
   that value.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase