Add a comment to an existing file.
{ARGS}
If successful, the response will include a file comment object.
{
"ok": true,
"comment": {
"id": "Fc1234567890",
"created": 1356032811,
"timestamp": 1356032811,
"user": "U1234567890",
"comment": "Everyone should take a moment to read this file."
}
}
{ERRORS}
{WARNINGS}