git: purgatorio

ref: 00c219c7d9c2b9f60c2db0e1ba7289b2301209a7
dir: /appl/cmd/ip/ppp/

mkfile
modem.b
modem.m
pppclient.b
pppclient.m
pppdial.b
pppgui.b
pppgui.m
ppptest.b
script.b
script.m