regress/mdoc/Bl/column.out_lint

   1 mandoc: column.in:1:5: STYLE: Mdocdate missing: Dd October
   2 mandoc: column.in:71:2: WARNING: wrong number of cells: 2 columns, 1 cells
   3 mandoc: column.in:74:2: WARNING: wrong number of cells: 2 columns, 4 cells
   4 mandoc: column.in:75:2: WARNING: wrong number of cells: 2 columns, 5 cells
   5 mandoc: column.in:103:18: WARNING: skipping -width argument: Bl -column
   6 mandoc: column.in: STYLE: RCS id missing