[test][facecentered][drawgrid] replace macro gnuplot #warning with output

5 jobs for !2804 with fix/drawgrid_gnuplotmacro_output
latest detached
Status Name Job ID Coverage
  Trigger
passed full-dune-2.7-clang

passed full-dune-2.7-gcc

passed full-dune-master-gcc

passed minimal-dune-2.7-gcc

 
  Downstream Modules
passed trigger lecture