tcp/udpsvd: robustify SIGCHLD handling

function                                             old     new   delta
if_verbose_print_connection_status                     -      40     +40
tcpudpsvd_main                                      1798    1794      -4
connection_status                                     31       -     -31
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(add/remove: 1/1 grow/shrink: 0/1 up/down: 40/-35)              Total: 5 bytes

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