presets: parsing: continue if empty line

src/overlay_params.cpp

@@ -1001,8 +1001,12 @@ bool parse_preset_config(int preset, struct overlay_params *params){
    bool found_preset = false;
 
    while (std::getline(stream, line)) {
+      printf("line: %s\n", line.c_str());
       trim(line);
 
+      if (line == "")
+         continue;
+
       if (line == preset_string) {
          found_preset = true;
          continue;