regress/mdoc/Ud/arg.out_lint

   1 mandoc: arg.in:10:2: STYLE: useless macro: Ud
   2 mandoc: arg.in:12:2: STYLE: useless macro: Bt
   3 mandoc: arg.in:16:2: STYLE: useless macro: Ud
   4 mandoc: arg.in:16:2: ERROR: skipping all arguments: Ud bar
   5 mandoc: arg.in:17:2: STYLE: useless macro: Bt
   6 mandoc: arg.in:17:2: ERROR: skipping all arguments: Bt foo
   7 mandoc: arg.in:18:2: STYLE: useless macro: Ud
   8 mandoc: arg.in:18:2: ERROR: skipping all arguments: Ud one
   9 mandoc: arg.in:19:2: STYLE: useless macro: Bt
  10 mandoc: arg.in:19:2: ERROR: skipping all arguments: Bt one