Method incrIndent

libraries/XMLWriter/XMLWriter.h:109–109

for manual layout control

  uint8_t getIndentSize() { return _indentStep; };
  //  for manual layout control
  void incrIndent()       { _indent += _indentStep; };
  void decrIndent()       { _indent -= _indentStep; };
  void indent();
  void raw(const char * str) { print(str); };