"infinity" check was missed from login_getcapsize(), add it
"infinity" check was missed from login_getcapsize(), add it

One manifestation of this bug: all networking users have coredumpsize=0

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