udhcpc: get rid of client_data.fqdn field

function                                             old     new   delta
attach_option                                        253     276     +23
udhcpc_main                                         2582    2588      +6
udhcpc6_main                                        2579    2571      -8
add_client_options                                   175     158     -17
udhcp_insert_new_option                              169     138     -31
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(add/remove: 0/0 grow/shrink: 2/3 up/down: 29/-56)            Total: -27 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
5 files changed