user count bug in ruptime

[Greg Hackney]

The ruptime command seems to max out at 40 users, even tho
there are more users on the system. A bug?  ref: OSx4.1
--
Greg

arriba        up  2+00:04,     1 user,   load 0.00, 0.00, 0.00
dales1      down  6+12:31
dales2      down  1+12:48
df1sta        up     7:23,     4 users,  load 1.31, 1.86, 1.66
df1stb        up     7:21,     1 user,   load 2.59, 2.81, 2.81
df1stc        up     7:21,     2 users,  load 1.06, 1.26, 1.28
texbell       up  1+20:13,     0 users,  load 0.00, 0.00, 0.00
texnet        up 11+19:14,    15 users,  load 0.10, 0.21, 0.20
tness7        up 11+22:53,    40 users,  load 3.10, 4.11, 4.20
                              ^^^^^^^^