Merge pull request #1739 from fengzeroz/v2.6

reg sigkill

src/main.c

@@ -125,9 +125,10 @@ static int neuron_run(const neu_cli_args_t *args)
     int           rv = 0;
 
     signal(SIGINT, sig_handler);
-    signal(SIGTERM, sig_handler);
     signal(SIGABRT, sig_handler);
     signal(SIGSEGV, sig_handler);
+    signal(SIGTERM, sig_handler);
+    signal(SIGKILL, sig_handler);
 
     // try to enable core dump
     rl.rlim_cur = rl.rlim_max = RLIM_INFINITY;