message: Switch graph rows hide delimiter to tab
diff: @@ -1369,7 +1369,7 @@ void GraphRows::init( TraceEvents &trace_events )
  std::string graph_rows_hide_str = s_ini().GetStr( "graph_rows_hide_str", "" );
  if ( !graph_rows_hide_str.empty() )
  {
  - m_graph_rows_hide = string_explode( graph_rows_hide_str, ',' );
  + m_graph_rows_hide = string_explode( graph_rows_hide_str, '\t' );
  for ( graph_rows_info_t &row_info : m_graph_rows_list )
  {
  @@ -1384,7 +1384,7 @@ void GraphRows::shutdown()
  {
  uint32_t num = 0;
  - std::string str = string_implode( m_graph_rows_hide, "," );
  + std::string str = string_implode( m_graph_rows_hide, "\t" );
  s_ini().PutStr( "graph_rows_hide_str", str.c_str() );
  for ( auto i : m_graph_rows_add.m_map )
  