regress/mdoc/Rs/args.out_lint

   1 mandoc: args.in:9:5: ERROR: skipping all arguments: Rs bogus
   2 mandoc: args.in:14:5: ERROR: skipping all arguments: Rs Sy
   3 mandoc: args.in:3:5: BASE: operating system explicitly specified: Os OpenBSD (OpenBSD)
   4 mandoc: args.in:1:5: BASE: Mdocdate missing: Dd February (OpenBSD)
   5 mandoc: args.in: BASE: RCS id missing: (OpenBSD)