git: purgatorio

ref: ef6ce918c04fc82bea759fd843cc09e273ec9f6c
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