andd newlines and SIGHUP handling

src/helper_funcs.cpp

@@ -3,17 +3,20 @@
 void safe_exit(int code) {
   switch (code) {
   case SIGTERM:
-    std::cerr << "received SIGTERM exiting...\n";
+    std::cerr << "\nreceived SIGTERM exiting...\n";
     break;
   case SIGINT:
-    std::cerr << "received SIGINT exiting...\n";
+    std::cerr << "\nreceived SIGINT exiting...\n";
     break;
   case SIGQUIT:
-    std::cerr << "received SIGQUIT exiting...\n";
+    std::cerr << "\nreceived SIGQUIT exiting...\n";
+    break;
+  case SIGHUP:
+    std::cerr << "\nreceived SIGHUP exiting...\n";
     break;
 
   case SIGSEGV:
-    std::cerr << "received SIGSEGV(segmentaiton fault) exiting...\nIf this "
+    std::cerr << "\nreceived SIGSEGV(segmentaiton fault) exiting...\nIf this "
                  "repeats please report this bug\n";
     break;
   }

src/main.cpp

@@ -14,6 +14,7 @@ int main(int argc, char **argv) {
   signal(SIGTERM, safe_exit);
   signal(SIGINT, safe_exit);
   signal(SIGQUIT, safe_exit);
+  signal(SIGHUP, safe_exit);
 
   // error signal handlers
   signal(SIGSEGV, safe_exit);