Bugfix empty message.

osdd.c

@@ -139,6 +139,7 @@ display_msg(struct msg *msg)
   int log = default_log;
 
   char *line = msg->text;
+  int num_l=0;
   while (*line)
     {
       // The parser it destructive, but it does not do any harm, since we display each message only once.
@@ -189,6 +190,7 @@ display_msg(struct msg *msg)
 	outline_width = atoi(val);
       if (l)
 	{
+	  num_l++;
 	  l->fg_color = fg_color;
 	  l->outline_color = outline_color;
 	  l->outline_width = outline_width;
@@ -198,6 +200,16 @@ display_msg(struct msg *msg)
       line = nl;
     }
 
+  if(!num_l)
+  {
+	  struct osd_line *l = osd_add_line(osd,OSD_TYPE_TEXT);
+	  l->u.text[0]=0;
+	  l->fg_color = fg_color;
+	  l->outline_color = outline_color;
+	  l->outline_width = outline_width;
+	  l->log = log;
+  }
+
   if (msg->min_light > msg->max_light)
     msg->min_light = msg->max_light;