New comment by leahneukirchen on mblaze repository

https://github.com/leahneukirchen/mblaze/pull/260#issuecomment-2176767138

Comment:
No, see the documentation:

```
The flag -body file can be used to
     prepopulate the draft for mcom and mrep with the contents of file.

```

You can use a here-string if you want to pass a string as a body (if your shell supports it).