Reduce max backlog in listen(): 20 --> 10
Reduce max backlog in listen(): 20 --> 10

Both the original MIT Athena inetd and the GNU inetutils inetd only keep
a backlog of 10 connections in listen() for TCP sockets.  This patch
adjusts the Finit hard coded default accordingly.

Signed-off-by: Joachim Nilsson <583c295fd7602c168ad814279bbc3894ba65f5d6@gmail.com>

troglobit/finit,troglobit/finit,westermo/finit,westermo/finit