Optimized terminal and HTML UI output when tailing multiple files.

This should reduce the number of reflows on the TUI and on the HTML report
since it no longer sends one message per file via the WebSocket.

src/goaccess.c

@@ -864,12 +864,6 @@ perform_tail_follow (GLog * glog) {
 
 out:
 
-  if (!conf.output_stdout) {
-    tail_term ();
-  } else {
-    tail_html ();
-  }
-
   return 0;
 }
 
@@ -880,14 +874,18 @@ tail_loop_html (Logs * logs) {
     .tv_sec = conf.html_refresh ? conf.html_refresh : HTML_REFRESH,
     .tv_nsec = 0,
   };
-  int i = 0;
+  int i = 0, ret = 0;
 
   while (1) {
     if (conf.stop_processing)
       break;
 
     for (i = 0; i < logs->size; ++i)
-      perform_tail_follow (&logs->glog[i]);     /* 0.2 secs */
+      ret = perform_tail_follow (&logs->glog[i]);       /* 0.2 secs */
+
+    if (0 == ret)
+      tail_html ();
+
     if (nanosleep (&refresh, NULL) == -1 && errno != EINTR)
       FATAL ("nanosleep: %s", strerror (errno));
   }
@@ -989,6 +987,7 @@ term_tail_logs (Logs * logs) {
     if (perform_tail_follow (&logs->glog[i]) != 0)
       continue;
 
+    tail_term ();
     offset = *logs->processed - logs->offset;
     render_screens (offset);
     if (nanosleep (&ts, NULL) == -1 && errno != EINTR) {