When a code-block starts with a period, ROFF MS interpreted this as a command rather than a part of the code-block. The solution is to escape the periods.
[
{
"endline": 207,
"file": "src/Text/Pandoc/Writers/Ms.hs",
"function": "blockToMs",
"module": "Text.Pandoc.Writers.Ms",
"startline": 207
}
][
{
"endline": 209,
"file": "src/Text/Pandoc/Writers/Ms.hs",
"function": "blockToMs",
"module": "Text.Pandoc.Writers.Ms",
"startline": 207
}
]