Sublime's "Convert Syntax to .sublime-syntax" command does not support commands. I had to remove them with a find & replace regexp:

```
\t*(<key>comment).*\W.*(</string>)\n?
```

Followed by:

```
\t*<dict>\W*</dict>\W*\n
```

To remove the empty `<dict></dict>` which Sublime also cannot handle.
