Signal: restore handler for SIGPIPE.
Signal: restore handler for SIGPIPE.

This problem was introduced on commit 84fa79eb. Without the SIGPIPE handler
the server will stop working when the Kernel trigger a SIGPIPE because of a
remote socket disconnection.

Signed-off-by: Eduardo Silva <81f705dc2ce1a61a2621e0e4b442a9474e1d0c70@monkey.io>

monkey/monkey,monkey/monkey,dreamsxin/monkey,WilliamRen/monkey-1,dougsko/monkey,WilliamRen/monkey-1,WilliamRen/monkey-1,monkey/monkey,sbagmeijer/monkey,dougsko/monkey,sujayraaj/monkey_rtems,sujayraaj/monkey,sujayraaj/monkey,monkey/monkey,WilliamRen/monkey-1,sujayraaj/monkeyTest,sbagmeijer/monkey,dreamsxin/monkey,dougsko/monkey,sujayraaj/monkey_rtems,dreamsxin/monkey,sujayraaj/monkey_rtems,sujayraaj/monkey,sbagmeijer/monkey,WilliamRen/monkey-1,sujayraaj/monkey,sujayraaj/monkey_rtems,monkey/monkey,dreamsxin/monkey,sujayraaj/monkey_rtems,sbagmeijer/monkey,sujayraaj/monkeyTest,sujayraaj/monkeyTest,sujayraaj/monkey,monkey/monkey,sbagmeijer/monkey,dougsko/monkey,sujayraaj/monkeyTest,dreamsxin/monkey,dougsko/monkey