add minor comments in task file for modelsim regression tests
@@ -160,5 +160,6 @@ vpr_fpga_verilog_explicit_mapping=
vpr_fpga_x2p_compact_routing_hierarchy=
# If you wish to run Modelsim verification in batch, turn on the ini file outputting
vpr_fpga_verilog_print_simulation_ini=
+# If you wish to run Modelsim verification in batch, turn off running iVerilog at the end of the flow
#end_flow_with_test=
