fakeinetd: attempted ipv6-ization (and it's done)

fakeinetd: attempted ipv6-ization (and it's done)
but entire applet can be orders of magnitude smaller
if written as an inetd service.
So did that (#ifdef'ed out entire old version).
inetd version is less than 10% of old one!
function                                             old     new   delta
packed_usage                                       22083   22105     +22
nobodystr                                              4       -      -4
bind_ip_address                                        4       -      -4
ident_substr                                          20       -     -20
chmatch                                               22       -     -22
movefd                                                25       -     -25
skipchars                                             49       -     -49
handlexitsigs                                         51       -     -51
replyError                                            70       -     -70
.rodata                                           158120  158024     -96
deleteConn                                           102       -    -102
G                                                    524     388    -136
conns                                                560       -    -560
fakeidentd_main                                     1457     143   -1314
------------------------------------------------------------------------------
(add/remove: 0/10 grow/shrink: 1/3 up/down: 22/-2453)       Total: -2431 bytes