note[PreambleComments]: preamble comments must start with `##` followed by a space
   ┌─ tests/lints/one-invalid-preamble-comment/source.wdl:2:1
   │  
 2 │ ╭ # This is a test of having one big invalid preamble comment.
 3 │ │ #
 4 │ │ 
 5 │ │ # All of the lines
   · │
11 │ │ # as a single diagnostic
12 │ │ # warning
   │ ╰─────────^
   │  
   = fix: change each preamble comment to start with `##` followed by a space