Handle prompt: None better in logs

[simonw]

Currently looks like this:

## Prompt:

None

### Attachments

1. **image/jpeg**: https://static.simonwillison.net/static/2024/recraft-ai.jpg

## Response:

This image shows a cartoon illustration of a cute raccoon character created in a...

A few problems:

• None for the prompt is ugly.
• Inconsistent use of : on those headings

[simonw]

I'm going with - none - for the prompt display. I'll settle on no colons.

[simonw]

Now looks like this:

# 2025-02-27T03:12:03    conversation: 01jn2p7yr0mdetc6byr5p8zf8d

Model: **anthropic/claude-3-7-sonnet-latest**

## Prompt

- none -

### Attachments

1. **image/jpeg**: https://static.simonwillison.net/static/2024/recraft-ai.jpg

## Response

This image shows a cartoon illustration of a cute raccoon character created...

[simonw]

Actually no, when we render it looks like this:

Model: anthropic/claude-3-7-sonnet-latest

Prompt

• none -

I don't want that as a bullet.

[simonw]

Switching to -- none -- fixes that:

2025-02-27T03:12:03 conversation: 01jn2p7yr0mdetc6byr5p8zf8d

Model: anthropic/claude-3-7-sonnet-latest

Prompt

-- none --