Make pw(8) build without <utmp.h>.
Make pw(8) build without <utmp.h>.

The size of the username record in utmp files should not influence the
maximum username length. Right now ut_user/ut_name is big enough, so in
this case it's dead code anyway.

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