updated valgrind.suppress for the "hup reload" + valgrind/memcheck testing mode.

Author: agentzh

valgrind.suppress

@@ -1,6 +1,36 @@
 {
 <insert_a_suppression_name_here>
 Memcheck:Param
+socketcall.sendmsg(msg.msg_iov[i])
+fun:__sendmsg_nocancel
+fun:ngx_write_channel
+fun:ngx_signal_worker_processes
+fun:ngx_master_process_cycle
+fun:main
+}
+{
+<insert_a_suppression_name_here>
+Memcheck:Param
+socketcall.sendmsg(msg.msg_iov[i])
+fun:__sendmsg_nocancel
+fun:ngx_write_channel
+fun:ngx_master_process_cycle
+fun:main
+}
+{
+<insert_a_suppression_name_here>
+Memcheck:Param
+socketcall.sendmsg(msg.msg_iov[i])
+fun:__sendmsg_nocancel
+fun:ngx_write_channel
+fun:ngx_pass_open_channel
+fun:ngx_start_worker_processes
+fun:ngx_master_process_cycle
+fun:main
+}
+{
+<insert_a_suppression_name_here>
+Memcheck:Param
 epoll_ctl(event)
 fun:epoll_ctl
 }